Search: “ModernBERT-Base”

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USN-8571-2: Apache HTTP Server regression

Ubuntu issues USN-8571-2 fixing an Apache HTTP Server regression that prevented startup when HTTP/2 proxying was enabled.

Ubuntu released USN-8571-2 to fix a regression introduced by USN-8571-1 in Apache HTTP Server. The earlier fix was incomplete due to a missing library symbol, causing Apache to fail to start when HTTP/2 proxying was enabled. The original advisory addressed CVE-2026-33007, a memory-handling flaw in mod_authn_socache allowing remote denial of service, and an HTTP response splitting vulnerability affecting multiple modules, credited to Pavel Kohout, Arkadi Vainbrand, Haruki Oyama, Merih Mengisteab, and Dawit Jeong.

Ubuntu Security Noticesupdated Sep 11, 12:03 UTC · 5d agofirst Sep 10, 19:36 UTC · 5d agoAdvisory 13 sources CVE-2026-33007

China-Linked Hackers Exploit Chrome-Windows Zero-Day Chain to Deploy GRIMWEDGE

Volexity attributes spear-phishing campaign exploiting Chrome-Windows zero-day chain to Chinese actors UTA0560 and APT31 deploying GRIMWEDGE and LONGTALE.

Volexity attributes a September 1, 2026 spear-phishing campaign targeting NGOs to China-linked UTA0560, which abused a reflected XSS flaw on a US university website to trigger a three-part exploit chain (CVE-2026-85046, CVE-2026-87491, CVE-2026-85880) escaping the Chrome V8 and browser sandboxes to deploy the GRIMWEDGE JavaScript backdoor with reconnaissance, file management, and command execution capabilities. The same chain was used near-simultaneously by JungleBamboo (APT31) to deploy SUPERSTOMP, installing the LONGTALE/GemStone credential-stealing Chrome extension masquerading as Google Gemini. The Chrome flaws were patched in Chromium but not yet in stable Chrome, creating an unusual patch-gap zero-day window attackers raced to exploit.

The Hacker Newsupdated Sep 15, 10:17 UTC · 1d agofirst Sep 15, 05:31 UTC · 1d agoThreat actor in the wild 20 sources CVE-2026-85046 CVE-2026-87491 CVE-2026-858801· 1 read

USN-8726-1: Linux kernel vulnerabilities

Ubuntu issued kernel security update USN-8726-1 fixing an Arm TLB invalidation flaw (CVE-2025-10263) that enables local privilege escalation, plus other kernel fixes.

Ubuntu released USN-8726-1, a security update for the generic Linux kernel. It fixes CVE-2025-10263, where certain Arm processors complete broadcast TLB invalidation before related memory writes are globally observed, potentially letting local attackers bypass memory protections or escalate privileges. The update also addresses additional kernel flaws in ARM64, ARM32, RISC-V, S390 and other subsystems.

Ubuntu Security Noticesupdated Sep 7, 09:12 UTC · 9d agofirst Sep 7, 08:57 UTC · 9d agoAdvisory 6 sources CVE-2025-10263

Climate-ModernBERT: Revisiting Corpus Composition for Domain-Adaptive Continued Pretraining

Climate-ModernBERT domain-adapted encoders reach 76.3 average F1 across nine climate benchmarks, 2.8 points above vanilla ModernBERT-Base.

The authors continue pretraining ModernBERT-Base on three climate corpora - academic text, climate-filtered web data, and synthetic documents - and compare joint mixtures against parameter-space merging of specialized checkpoints. The best model achieves 76.3 average F1 across nine climate NLP benchmarks, a 2.8-point improvement over the vanilla baseline. Academic climate corpora provide the strongest adaptation signal, and parameter-space merging outperforms joint multi-source training while preserving complementary corpus information; all variants are released.

arXiv cs.AI / cs.LG / cs.CLSep 7, 17:41 UTC · 8d agoAI research

We got admin access to Baseten's production GitHub in 25 minutes

Strix autonomous hacking agent extracted a working GitHub token with repo admin rights from Baseten's public Harbor image; Baseten rotated it next day.

Strix, an autonomous hacking agent, scanned *.baseten.co without credentials and found a public Harbor container registry project anonymously exposing the baseten/baseten-app image. A GitHub personal access token for basetenbot, embedded in Docker build history since March 2023, still worked in July 2026 and granted admin/push rights to basetenlabs/baseten, flux-cd, and homebrew-tap plus read/write on private customer repos. Baseten, valued at $13 billion, confirmed the issue as critical and rotated the token within a day.

Hacker News · AISep 15, 18:11 UTC · 19h agoVulnerability HN 51↑ · 12 comments1

Xen Security Advisory 511 v3 (CVE-2026-79603) - Unconditionally do TLB flushing ahead of page scrubbing

Xen Project released XSA-511 (CVE-2026-79603) fixing missing TLB flushes before page scrubbing that can leak x86 PV guest data.

Xen Security Advisory 511 v3 publicly discloses CVE-2026-79603, a TLB handling flaw in the Xen hypervisor on x86. x86 PV guests can free memory pages while a stale TLB entry still points to them, and Xen only flushes the TLB when the page is reused, potentially exposing stale data ahead of scrubbing. The advisory changes Xen to unconditionally flush the TLB ahead of page scrubbing. The issue was published in version 3 of the advisory.

oss-securitySep 8, 15:39 UTC · 7d agoVulnerability 4 sources CVE-2026-79603

Re: Retrospective by 'gpg.fail' authors

Sam James replies to GnuPG author Werner Koch that upstream may freely adopt stricter -W compiler warnings, while distros should avoid blanket -Werror.

This is an oss-security mailing list reply by Sam James (Gentoo toolchain maintainer) to Werner Koch in the thread on the 'gpg.fail' authors' retrospective about GnuPG. James states that upstream projects like GnuPG should feel free to enable whatever -W* warning flags they need. He adds that distributions should not use -Werror indiscriminately, allowing narrow exceptions such as -Werror=format-security, and may reject warning-driven bugs that do not reflect real issues. No new CVE or vulnerability details are disclosed in this reply.

oss-security05:03 UTC · 8h agoVulnerability 6 sources

USN-8752-1: Konsole vulnerability

Ubuntu patches Konsole URL-handling flaw that could let a remote attacker execute arbitrary code under specific circumstances.

USN-8752-1 fixes a Konsole vulnerability where certain URLs are incorrectly handled under specific circumstances. A remote attacker could possibly exploit this to execute arbitrary code on a victim's system. Ubuntu released updated packages for affected releases.

Ubuntu Security NoticesSep 14, 11:52 UTC · 2d agoAdvisory

On Identifying Sound Conditions for Frontrunning Resistance

Researchers formally define smart-contract frontrunning resistance, showing 55% of 393 audited vulnerabilities escape state-of-the-art detection, and find two undisclosed Ethereum flaws.

The paper gives the first formal definition of frontrunning vulnerability for smart contracts, grounded in how honest users interact with contracts rather than contract code alone. In a large-scale study of 287 smart contract audits, 55% of the 393 vulnerabilities reported by leading auditors fall outside the scope of state-of-the-art dynamic detection criteria. The authors present a sound algorithm for synthesizing secure interaction conditions and apply it to real-world contracts, uncovering previously undiscovered vulnerabilities in two Ethereum contracts.

arXiv cs.CRSep 10, 13:35 UTC · 5d agoResearch

[webapps] Metabase 0.61.0 - Authenticated Remote Code Execution

Exploit-DB published an authenticated remote code execution exploit targeting Metabase version 0.61.0.

A new Exploit-DB entry (ID 52680) describes an authenticated remote code execution vulnerability in Metabase 0.61.0. The listing provides minimal detail, but authenticated RCE in a widely deployed BI tool is notable for defenders running exposed instances. No CVE id or in-the-wild exploitation is mentioned in the listing.

Exploit-DBSep 3, 00:00 UTC · 13d agoExploit / PoC1

[webapps] PodcastGenerator 3.2.9 - Stored XSS

A stored cross-site scripting flaw in PodcastGenerator 3.2.9 is documented with a public proof-of-concept exploit on Exploit-DB.

Exploit-DB published exploit ID 52677 targeting PodcastGenerator 3.2.9, a web application affected by stored cross-site scripting. The listing provides a proof-of-concept for the flaw but includes no CVE identifier or reports of active exploitation.

Exploit-DBSep 2, 00:00 UTC · 14d agoExploit / PoC1

Hackers Disable Endpoint Protection and Deploy Sliver Across Compromised Windows Domain

The Hunter's Ledger tracked campaign UTA-2026-024 using Sliver C2, Domain Admin account creation, and Ethereum-based C2 rotation to compromise a US organization's Windows domain.

The Hunter's Ledger tracked an intrusion at one unnamed US organization as UTA-2026-024, staged from exposed server 193.233.202.17 with a Sliver beacon. Operators created a non-expiring Domain Admin account, enabled RDP with NLA disabled, dumped SAM, SYSTEM and SECURITY hives plus LSASS memory, and disabled eight endpoint protection services. A Node.js implant resolved its C2 server from an Ethereum smart contract that rotated domains five times in five months, while SYSTEM scheduled tasks with backdated dates and DNS allowlist manipulation provided persistence. The infrastructure ties to a confirmed ransomware incident, but no encryptor deployment was proven in this intrusion.

Cyber Security NewsSep 8, 12:10 UTC · 8d agoThreat actor in the wild

curl: a CVE dispute

curl maintainer Daniel Stenberg details a dispute over a CVE assigned to the curl project.

Daniel Stenberg, lead maintainer of curl, published a post describing a dispute over a CVE affecting the project. The piece covers the vulnerability disclosure and CVE assignment process rather than a new exploitable flaw. Given curl's ubiquity, the process discussion is relevant to defenders tracking CVE quality, but no immediate risk is described.

Lobsters · securityAug 31, 10:38 UTC · 16d agoVulnerability

USN-8670-3: curl vulnerability

Ubuntu issued USN-8670-3 updating curl for Ubuntu 26.04 LTS to fix a flaw where wrong client certificates could be used on reused connections.

Ubuntu Security Notice USN-8670-3 extends the curl fix from USN-8670-1 to Ubuntu 26.04 LTS. The flaw, discovered by Joshua Rogers, involves incorrect handling of connection reuse when client certificate settings change, potentially causing the wrong client certificate to be presented. The issue can lead to authentication mix-ups rather than remote code execution.

Ubuntu Security NoticesSep 8, 17:20 UTC · 7d agoAdvisory

USN-8757-1: cgit vulnerability

Ubuntu USN-8757-1 fixes cgit path-handling flaw letting remote attackers read files outside repositories during HTTP cloning.

Ubuntu Security Notice USN-8757-1 addresses a cgit vulnerability in which repository paths are incorrectly handled when HTTP cloning is enabled. A remote attacker could exploit the flaw to access files outside the repository and obtain sensitive information. The notice provides no CVE identifier or exploitation details.

Ubuntu Security NoticesSep 14, 13:13 UTC · 1d agoAdvisory

commit-rewriter 0.1

Simon Willison released commit-rewriter 0.1, a tool that rewrites git commit messages from the first edited commit, with a timestamped revert branch.

Simon Willison built commit-rewriter 0.1, a small web app for editing git commit messages, motivated by cleaning up Datasette security release commits that contained coding agent cruft and private issue IDs. It runs via 'uvx commit-rewriter path/to/repo' and creates a timestamped branch of the repo state before rewriting every commit from the first edited one to the most recent, allowing easy reversion.

Simon WillisonSep 14, 00:28 UTC · 2d agoTools1

USN-8514-2: OpenSSH vulnerabilitynew

Ubuntu backports an OpenSSH fix to older LTS releases for an scp flaw enabling setuid file placement and privilege escalation.

USN-8514-2 extends the USN-8514-1 OpenSSH fix to Ubuntu 14.04 LTS, 18.04 LTS, and 20.04 LTS. The flaw stems from incorrect file permission handling when downloading files as root using the legacy scp protocol without the preserve-mode option. An attacker could exploit this to install setuid or setgid files on the system, potentially leading to privilege escalation.

Ubuntu Security Notices08:46 UTC · 4h agoVulnerability

To See a World in a Living Context: Unified Indoor-Outdoor Urban World Generation

Researchers introduce HoloWorld, a unified text-driven framework generating coherent indoor-outdoor 3D urban worlds, improving average AQS over SOTA by 7.68%.

HoloWorld is a text-driven 3D generation framework that unifies indoor and outdoor urban world generation using a continuously updated cross-scale world context. It autoregressively generates urban exteriors with consistent spatial organization, grounded in 3D building instances and footprints, then produces building-specific interiors with geometry-constrained layouts that inherit exterior appearance. The authors claim it is the first framework to unify indoor and outdoor generation within one coherent 3D urban world, reporting a 7.68% average AQS improvement over prior SOTA and the highest average RDR score.

Hugging Face daily papersAug 28, 20:00 UTC · 18d agoAI research

MicroHasTEE: Bare-Metal Haskell for Type-Level Peripheral Ownership on Armv8-M

MicroHasTEE expresses TrustZone secure and non-secure firmware as one typed Haskell program, catching peripheral-ownership inconsistencies at compile time.

MicroHasTEE is a multiparty Haskell framework that models both TrustZone firmware images as participants in a single typed program, using type-level capability ledgers to track peripheral acquisition, configuration, transfer, and finalization. MicroHs compiles the shared program twice to produce separate bare-metal Secure and Non-secure firmware images. The framework rejects inconsistent resource use, post-configuration attribution changes, wrong-domain callbacks, and calls to unregistered Secure services. A door-lock case study on an STM32U5 Nucleo board produced images of 232.7 KiB and 228.4 KiB of flash with roughly 220 KiB of SRAM per domain.

arXiv cs.CRSep 11, 08:34 UTC · 5d agoResearch1

A new open standard locks AI weights to approved hardware

OPAQUE releases Weight Custody Manifest, an open standard keeping AI model weights encrypted until receiving hardware cryptographically attests to builder-specified conditions.

OPAQUE, a confidential computing company, released the Weight Custody Manifest (WCM) standard as a developer-preview specification with a Python SDK and a public test suite of 91 cases. WCM keeps model weights encrypted until the receiving infrastructure proves via CPU/GPU attestation that it matches builder-signed conditions, and decryption access can be revoked later if conditions change. OPAQUE says it ran the attestation exchange on an NVIDIA H100 and on AMD and Intel confidential servers hosted on Azure and Google Cloud, with two independent SDK builds producing identical output across 5,948 files. The public quickstart only exercises protocol logic on synthetic evidence and skips GPU cryptographic verification, and the standard cannot distinguish an authorized key from one physically extracted from hardware.

Help Net SecuritySep 10, 04:10 UTC · 6d agoAI safety & security

Re: AI slops from Eve

Jeroen Roovers links a header-less LLM-generated advisory to a similar fake llama.cpp GGUF parser advisory from May 2026.

In the 'AI slops from Eve' oss-security thread, Jeroen Roovers asks whether a current LLM-generated message without a Date header comes from the same source as a May 15, 2026 posting titled 'Security Advisory: Multiple Vulnerabilities in llama.cpp GGUF Format Parsers'. Both fake advisories share the missing Date header trait. The exchange highlights growing LLM-generated noise on security mailing lists.

oss-securityupdated Sep 13, 15:08 UTC · 2d agofirst Sep 13, 14:51 UTC · 2d agoIndustry 12 sources

USN-8768-1: Shibboleth vulnerability

Ubuntu patches Shibboleth SQL injection in the ODBC storage plugin allowing remote attackers to extract sensitive information.

Ubuntu security notice USN-8768-1 fixes a Shibboleth vulnerability discovered by Florian Stuhlmann. The software incorrectly escaped input when using the ODBC storage plugin, allowing a remote attacker to perform SQL injection attacks and obtain sensitive information. Users are advised to update the Shibboleth package.

Ubuntu Security NoticesSep 15, 15:43 UTC · 21h agoAdvisory

PostgreSQL Fixes 12-Year-Old Logical Decoding Flaw Enabling Replication-Role Code Execution

PostgreSQL fixed CVE-2026-6471 (CVSS 7.2), a 12-year-old logical decoding flaw letting replication-role accounts execute arbitrary code as the database OS user.

PostgreSQL patched CVE-2026-6471 (CVSS 7.2), a flaw present since logical decoding shipped in 9.4 (2014) that lets an account with the REPLICATION attribute run arbitrary code as the database server's OS user when wal_level is logical. Versions before 18.6, 17.11, 16.15, 15.19, and 14.24 are affected; exploitation requires such an account, which backup, CDC, and monitoring tooling routinely holds. The fix adds an output_plugin_libraries whitelist, so administrators using non-default plugins such as wal2json and decoderbufs must add them and reload configuration after updating. Cyera Research, whose write-up names the flaw PostGREShell, demonstrated escalating a replication user to superuser with persistence; no PoC or KEV entry existed as of September 4.

The Hacker NewsSep 4, 15:20 UTC · 11d agoVulnerability CVE-2026-64711

Google’s open-source HEIR lets AI work with data it can’t see

Google open-sourced HEIR, a compiler toolchain that converts pre-trained AI models to operate on homomorphically encrypted data without exposing it.

Google's HEIR (Homomorphic Encryption Intermediate Representation) is an open-source compiler toolchain and development platform for fully homomorphic encryption, announced in 2023 and now supporting four peer-reviewed publications. It compiles Python programs handling sensitive data into implementations that process encrypted inputs, supporting multiple FHE schemes, libraries, front-end languages, and hardware accelerators such as GPUs, TPUs, FPGAs, and custom ASICs. Demonstrated applications include private recommendations, credit card fraud detection, network intrusion detection, and hotword recognition.

Help Net SecurityAug 18, 00:00 UTC · 29d agoTools

Malicious Apache Modules Hijack Brazilian Government Site Traffic to Push Betting Pages

Check Point links Gambling Goblin, a Chinese-speaking cluster, to malicious Apache modules hijacking Brazilian government servers to promote betting sites.

Check Point Research tracks Gambling Goblin, a Chinese-speaking cluster, installing malicious Apache reverse-proxy modules on compromised Brazilian government and education web servers since mid-2025. The modules divert visitors to gambling and fake app-store pages while stripping the site's security headers, likely for large-scale SEO manipulation. The group's Linux arsenal includes DownPro, AlphaAgent, oRAT, a 3snake-based credential stealer, and SSH brute-forcing tools, and it is tied to Trend Micro's Earth Berberoka. Related SEO-fraud campaigns on .gov.br domains were documented by ESET (GhostRedirector), Palo Alto Networks Unit 42, and Hunt.io.

The Hacker NewsSep 2, 13:44 UTC · 13d agoThreat actor in the wild

You've Got a BUD in Me: Authenticated Reads from Per-Block Write Logs

Researchers propose BUD, per-block write-log digests enabling blockchain validators to serve historical membership and exclusion proofs far cheaper than state-wide tries.

The paper introduces Block Update Digests (BUD), which authenticate each block's write log with predecessor pointers, plus a SuperBUD and exponential hierarchy to turn long unchanged intervals into short proofs. Soundness against adversarial provers and up to f Byzantine validators is proven under archive, attestation, and committee evidence assumptions. Benchmarks show a 50x state-size increase raises the base-BUD path only 1.24x versus 3.1x for in-memory and 69.5x for disk-backed Merkle Patricia tries, with read payloads below 800 bytes and p99 warm verification at 146 microseconds.

arXiv cs.CRSep 10, 08:46 UTC · 6d agoResearch

TCRF taken offline by DDoS attack after Claude user ban

The Cutting Room Floor game wiki was taken offline by a DDoS attack after a user leveraging Claude was banned.

The Cutting Room Floor (TCRF), a wiki documenting unused video game content, was knocked offline by a distributed denial-of-service attack. The attack reportedly followed moderation action banning a user who was using Anthropic's Claude. The incident highlights friction between community sites and AI-assisted users and tools.

Lobsters · securityAug 28, 21:26 UTC · 18d agoAI safety & security in the wild