ZeroHour

Source: oss-security

12 stories in the last 3d

CVE-2026-79993: Apache ZooKeeper: Missing ACL check on deleteContainer opcode allows unauthorized deletion of any empty persistent/container znode

Critical ZooKeeper flaw lets any authenticated client delete arbitrary empty persistent or container znodes by bypassing ACL checks.

CVE-2026-79993 (critical severity) affects Apache ZooKeeper 3.9.0-3.9.5 and 3.8.0-3.8.6. The deleteContainer opcode (0x14/20) is processed without verifying the caller's ACL permissions, allowing any authenticated client to delete specific empty znodes in the data tree regardless of ACL restrictions on the znode or its parent. This can corrupt coordination state for dependent distributed systems like Kafka, HBase, or Solr clusters relying on ZooKeeper.

CVE-2026-59739: Apache ZooKeeper: Information disclosure via SetWatches reconnect replay

CVE-2026-59739: Apache ZooKeeper missing ACL check in SetWatches reconnect replay lets attackers discover ACL-restricted znode paths.

Apache ZooKeeper versions 3.8.0-3.8.6 and 3.9.0-3.9.5 contain a critical information disclosure (CVE-2026-59739) caused by a missing ACL check during SetWatches reconnect replay. An attacker can register exists-watches on non-existent paths and reconnect after those paths are created, revealing the existence of ACL-restricted paths. The issue is fixed in patched releases.

Re: Retrospective by 'gpg.fail' authors

Unreported 0-day RCE in gpgsm 2.4.9 disclosed via gpg.fail talk, triggered by importing a malicious certificate with --debug options.

A retrospective by the gpg.fail authors revealed a remote code execution vulnerability in gpgsm 2.4.9, triggered when invoked as "gpgsm --debug all --import" with a malicious certificate file. The researchers did not report the issue to GnuPG, leaving it unpatched as an apparent 0-day. Exposure appears limited since it requires importing untrusted certificates with debug options enabled.

oss-securityupdated · 7h agofirst · 1d agoVulnerability 4 sources

CVE-2026-60163: MySQL Group Replication unauthenticated remote arbitrary SQL execution

Oracle reclassified MySQL Group Replication flaw CVE-2026-60163 from Local to Adjacent Network; researcher says it enables unauthenticated remote arbitrary SQL execution.

CVE-2026-60163 in MySQL Group Replication permits an unauthenticated remote attacker to execute arbitrary SQL on the destination server. Following discussion after the July disclosure, Oracle revised the CVSS attack vector rating from 'Local' to 'Adjacent Network'. The researcher posting to oss-security clarifies that, in the extreme, the attack surface is reachable fully remotely.

CVE-2026-77147: Apache Syncope: Groovy Sandbox escape for empty CommandArgs

Apache Syncope patches an important Groovy sandbox escape (CVE-2026-77147) allowing administrators to achieve code injection via empty CommandArgs.

CVE-2026-77147 is an important-severity improper control of code generation vulnerability in Apache Syncope, rated as a Groovy sandbox escape for empty CommandArgs. An administrator with adequate privileges can exploit the flaw to achieve code injection. Affected versions include syncope-core-spring 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.7, and 4.1.0-M0 through 4.1.2.

oss-security · 1d agoVulnerabilityCVE-2026-77147

CVE-2026-73178: Apache Syncope: JWT Access Token takeover

Apache Syncope discloses CVE-2026-73178, an important-severity flaw enabling JWT access token takeover in versions 3.0.x through 4.1.2.

Apache Syncope disclosed CVE-2026-73178, an Exposure of Sensitive Information to an Unauthorized Actor vulnerability rated important that allows JWT access token takeover. Affected versions include syncope-core-provisioning-java 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.7, and 4.1.0-M0 through 4.1.2. Users should upgrade to the latest fixed releases.

oss-security · 1d agoVulnerabilityCVE-2026-731781

CVE-2026-72524: Apache Doris: Authorization bypass allowing a low-privilege user to read/write/drop arbitrary tables

Apache Doris authorization bypass CVE-2026-72524 lets authenticated low-privilege users read, write, or drop arbitrary tables in affected 3.1.x through 4.1.3 versions.

CVE-2026-72524 is an incorrect authorization vulnerability in Apache Doris rated important, allowing an authenticated low-privilege user to bypass privilege checks and read, write, or drop arbitrary tables. Affected versions include Apache Doris 3.1.0 through 3.1.*, 4.0.0 through 4.0.7, and 4.1.0 through 4.1.3. The flaw permits access to or modification of data the user is not authorized to touch.

oss-security · 1d agoVulnerabilityCVE-2026-725241

Emacs arbitrary code execution: incomplete fix for CVE-2024-53920

Incomplete fix for Emacs CVE-2024-53920 allows arbitrary code execution when viewing or editing untrusted files in non-Lisp modes like Perl flymake.

Bas Alberts of GitHub Security Lab discovered that the patch for CVE-2024-53920, an arbitrary code execution flaw in Emacs, was incomplete. Code execution remains possible when viewing or editing untrusted text files in modes other than Emacs Lisp mode, for example Perl files with flymake mode enabled. All Emacs versions affected by the original CVE remain affected by the incomplete fix.

oss-security · 1d agoVulnerabilityCVE-2024-53920

CVE-2026-82435: Apache Storm Worker: Unauthenticated Remote Memory Exhaustion in the Worker Messaging Decoder

Unauthenticated remote memory exhaustion in Apache Storm Worker 3.0.x Netty decoder fixed in 3.1.0, allowing pre-auth denial of service.

CVE-2026-82435 (rated important) affects Apache Storm Worker (org.apache.storm:storm-client) versions 3.0.0 before 3.1.0. The worker's Netty message decoder sits ahead of SASL authentication handlers and processes frames before any authentication occurs. It allocates buffers sized from an attacker-controlled length field, so a single frame from an unauthenticated peer reaching the worker can exhaust memory. Users must upgrade to 3.1.0.

oss-security · 2d agoVulnerabilityCVE-2026-824353

CVE-2026-82430: Apache Storm Worker Launcher: Local Privilege Escalation to Root via Container Command Files Chowned to the Tenant

Setuid-root Apache Storm worker-launcher chowns worker directory to the tenant before reading its command file, enabling local root privilege escalation.

CVE-2026-82430 affects Apache Storm Worker Launcher (org.apache.storm:storm-core) versions 3.0.0 before 3.1.0, rated important. When launching Docker or OCI workers, the setuid-root worker-launcher transfers ownership of the entire worker directory to the untrusted topology user before reading and acting on the supervisor-written command file in that directory. An untrusted tenant can tamper with the command file to achieve local privilege escalation to root. Fixed in version 3.1.0.

oss-security · 2d agoVulnerabilityCVE-2026-82430

CVE-2026-82429: Apache Storm Worker Launcher: Local Privilege Escalation to Root via a Time-of-Check Race in the Worker Launcher

Apache Storm's setuid-root worker-launcher re-resolves paths during recursive chown/chmod, letting local users win a race to escalate to root.

CVE-2026-82429 affects Apache Storm Worker Launcher (org.apache.storm:storm-core) versions 3.0.0 before 3.1.0, rated important. The setuid-root worker-launcher walks worker directories with FTS calling lchown and chmod on full pathnames while running with effective uid 0, and both syscalls re-resolve the path at call time. A local attacker can exploit this time-of-check race by swapping path components to gain root privileges. Fixed in version 3.1.0.

oss-security · 2d agoVulnerabilityCVE-2026-82429

GNU GRUB 2.14: serial-MMIO lockdown bypass in Canonical-signed gcdx64.efi

Canonical-signed GRUB2 serial command accepts arbitrary MMIO addresses, letting local attackers with grub.cfg control bypass Secure Boot lockdown.

A vulnerability in Canonical's grub-efi-amd64-signed (gcdx64.efi, GRUB 2.14) exposes a serial command that accepts a caller-supplied 64-bit MMIO base address. The lockdown path does not restrict this command even when lockdown=y under UEFI Secure Boot, and the serial implementation does not validate that the requested register span belongs to a real UART rather than ordinary RAM. A local attacker with control of GRUB's boot configuration can abuse this to bypass the Secure Boot lockdown.

oss-security · 2d agoVulnerability2