Vulnerabilities

CVE-2026-85706 is a path traversal flaw (CWE-35) in GitLab Community Edition and Enterprise Edition in which the repository commits API does not properly confine file paths and does not enforce authentication, allowing an unauthenticated attacker to read arbitrary files from the GitLab server. It is triggered by sending a crafted unauthenticated request to the commits API that supplies traversal sequences moving outside the intended repository path. An attacker gains the ability to read arbitrary files on the host, which can expose configuration files, certificates, and stored credentials or keys; related reporting on the recent GitLab patch wave also notes credential theft and code execution flaws, though this CVE itself is the file-read issue. All self-managed GitLab CE and EE deployments are in scope, and CISA did not publish specific affected version ranges in this data. The flaw was added to CISA's KEV catalog on 2026-09-11 and is being actively probed and exploited in the wild within a day of disclosure, with three public proof-of-concept repositories available; ransomware use is not yet confirmed.

Do: Upgrade GitLab CE/EE to the patched release identified in GitLab's security advisory (no specific fixed version number is provided in this data), prioritizing internet-facing instances in line with CISA BOD 26-04; if patching is not immediately possible, restrict exposure and review access logs for unauthenticated requests to the commits API containing path traversal sequences. Because arbitrary file read can expose server-side secrets, inventory and rotate credentials, tokens, and keys stored on or reachable by affected GitLab hosts.

CVE-2026-18730 is a server-side request forgery (CWE-918) in the Manage API of GitHub Enterprise Server (GHES) that lets an unauthenticated attacker cause the instance to send crafted outbound requests to an attacker-controlled host. The flaw stems from an unauthenticated endpoint that parses an attacker-supplied cluster configuration and issues gateway-to-agent requests whose HMAC token authenticates only a timestamp, not the request path or body, so an attacker positioned to intercept the outbound request can capture the token. By replaying the captured token against privileged management agent endpoints, the attacker gains unauthorized access to management functionality, with the primary impact being disclosure of confidential management information (CVSS v4 rates confidentiality impact High, with no integrity or availability impact). All GHES versions prior to 3.22 are affected; fixes are available in 3.17.19, 3.18.13, 3.19.10, 3.20.6, and 3.21.4, and high-availability deployments are explicitly not affected due to a topology restriction. No public proof of concept, no CISA KEV listing, and a low EPSS score (0.3%, 23rd percentile) indicate no known exploitation at this time.

Do: Upgrade GitHub Enterprise Server to 3.17.19, 3.18.13, 3.19.10, 3.20.6, or 3.21.4 (or any 3.22+ release). Audit whether your deployment runs the affected non-HA/clustered topology, whether the unauthenticated Manage API endpoint is reachable, and whether management agent tokens should be rotated if instances could have been observed. High-availability deployments are not affected and need no action under this advisory.

GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.10 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect outbound model requests to an externally-controlled endpoint via a crafted inline flow configuration that overrides the HTTP Host header, resulting in disclosure of Google Cloud Vertex cloud service credentials and private signing keys.

Gitea before 1.27.1 contains a critical code injection flaw (CWE-94) in the diffpatch API that allows remote code execution by causing the installation of a Git hook. An attacker can submit a crafted request through the diffpatch API to plant a Git hook, which then executes arbitrary shell commands on the server when Git operations run; the CVSS vector indicates the attack requires no authentication or user interaction, while public reporting describes attackers with repository write access planting hooks to run shell commands. Successful exploitation yields full server compromise (confidentiality, integrity, and availability all rated high), and observed attacks have reportedly dropped a cryptocurrency miner. All Gitea deployments running versions prior to 1.27.1 are affected, with internet-facing instances at greatest risk; public scans identified over 8,300 vulnerable Gitea servers. The flaw is actively exploited in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2026-08-25, and EPSS estimates an 86.8% probability of exploitation within 30 days.

Do: Upgrade Gitea to version 1.27.1 or later immediately; organizations subject to BOD 26-04 must apply the vendor mitigation or discontinue use of unpatched cloud-hosted instances. Until patched, limit internet exposure of Gitea servers and inspect repository hook directories for unauthorized or recently modified hooks that could serve as persistence. Check for signs of compromise, including unexpected processes or cryptocurrency-miner activity, since in-the-wold attacks reportedly deploy a miner.

GitLab has remediated an issue in GitLab EE affecting all versions from 18.9 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with developer-role permissions could have executed arbitrary commands in a CI context, due to the Claude agent processing configuration from a user-controlled source.

GitPython's GitConfigParser contains a configuration-injection flaw (CWE-88/CWE-94) in its read-then-write round trip: multi-line values parsed from an on-disk config file using git's standard backslash-continuation syntax are decoded into Python strings with embedded newlines, and when the parser later rewrites the file, write_section() serializes them as a bare, unquoted newline-plus-tab continuation that real git parses as separate top-level config lines. The recently added UNSAFE_CONFIG_CHARS_RE safety guard only applies to values passed directly to set()/set_value()/add_value()/add_section(), never to values loaded from disk via _read(), so any unrelated write can turn a dormant value into a live directive such as core.hooksPath = <attacker-controlled path>. An attacker who can plant such a value in a config file that a GitPython-based application later rewrites gains arbitrary code execution, because git will execute the attacker's hook programs with the privileges of the user running GitPython. Developers, CI/CD systems, and pip-packaged tools that embed GitPython and rewrite git config files are affected, with GitPython 3.1.58 at HEAD confirmed vulnerable. No public PoC exists, it is not in CISA KEV, and EPSS assigns only a 0.4% probability of exploitation within 30 days, so no exploitation is currently known.

Do: Monitor GitPython for a patched release beyond 3.1.58/commit 9729ed3b (no fixed version is identified in the available data) and upgrade as soon as one is published. In the interim, avoid letting GitConfigParser rewrite config files that may contain multi-line (backslash-continuation) values, audit managed .git/config and related files for values with embedded newlines or unexpected trailing fragments like hooksPath, and restrict write access to those files to trusted principals.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.8 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user to achieve remote code execution due to a path traversal vulnerability in the package registry.

GitPython before 3.1.58 contains a flaw (CWE-88) in its check_unsafe_options guard, which is meant to block unsafe git options while allow_unsafe_options is set to its default value of False. The guard can be bypassed by combining a single-character keyword argument with split_single_char_options=False, causing GitPython to emit a joined token that git itself parses as an --upload-pack option. An attacker who can influence the kwargs passed to guarded methods such as clone_from can therefore inject --upload-pack and achieve arbitrary OS command execution, despite the library's default safe configuration. Any Python application, service, or pipeline built on the pip-installed GitPython library that passes attacker-controlled or remotely influenced arguments into its git wrapper methods is affected. A public proof-of-concept reference exists via the project's GitHub security advisory (GHSA-wvpp-8hx9-p66j); there is no evidence of in-the-wild exploitation yet, and EPSS puts 30-day exploitation probability at roughly 0.6%.

Do: Upgrade to GitPython 3.1.58 or later via pip as soon as possible. Audit application code paths where user or remote input flows into kwargs of guarded GitPython methods (e.g., clone_from), and avoid combining split_single_char_options=False with single-character keyword arguments until patched. No in-the-wild exploitation is confirmed, but given the public advisory, prioritize updates for internet-facing services that wrap git operations.

GitLab has patched a critical (CVSS 9.1) code injection flaw (CWE-94) in how GitLab Community Edition (CE) and Enterprise Edition (EE) process GraphQL directives. Under certain conditions, an unauthenticated remote attacker can abuse a GraphQL directive to modify or delete public projects and user data on affected instances, requiring no privileges or user interaction; the impact is to integrity and availability, not confidentiality. Affected versions span all GitLab CE/EE releases from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4, which covers self-managed installations as well as the same codebase that powers the GitLab.com SaaS. News reports indicate the flaw came under active exploitation within days of disclosure, and EPSS assigns a 5.8% probability of exploitation within 30 days (93rd percentile). It is not yet listed in CISA's KEV catalog and no public proof-of-concept is known, but defenders should treat it as an actively exploited, unauthenticated, high-impact issue.

Do: Upgrade all GitLab CE/EE instances to 18.11.11, 19.0.8, 19.1.6, or 19.2.4 (or later) immediately, prioritizing internet-facing instances given confirmed active exploitation. Until patched, restrict unauthenticated access to the GraphQL API endpoint at the network or WAF layer. Review instance audit logs and public projects for signs of unauthorized modifications or deletions of projects and user data.