CVE-2026-59828 Discourse: Hidden post revisions leak through adjacent visible diffs

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, post revisions that should be hidden from regular users could be leaked through visible diffs on adjacent revisions serialized by PostRevisionSerializer. This issue is fixed in versions 2026.6.0,...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the time parameter in the archived-revision workflow. An attacker can execute arbitrary JavaScript in the victim's browser, steal browser-accessible sensitive data, or perform actions as the victim by tricki...

GHSA-35F3-PG38-486F YesWiki Vulnerable to Reflected XSS via Unescaped Archived-Revision `time` Parameter in `handlers/page/show.php`

Summary YesWiki's archived-revision view reflects the time GET parameter into a hidden HTML input in handlers/page/show.php without escaping. Because MySQL coerces malformed DATETIME strings, an attacker can append HTML or JavaScript to a valid archived revision timestamp, still load that archive...

YesWiki Vulnerable to Reflected XSS via Unescaped Archived-Revision `time` Parameter in `handlers/page/show.php`

Summary YesWiki's archived-revision view reflects the time GET parameter into a hidden HTML input in handlers/page/show.php without escaping. Because MySQL coerces malformed DATETIME strings, an attacker can append HTML or JavaScript to a valid archived revision timestamp, still load that archive...

PT-2026-57004

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.6.0 Discourse versions prior to 2026.5.1 Discourse versions prior to 2026.4.2 Discourse versions prior to 2026.1.5 Description Post revisions intended to be hidden from regular users may be leaked through visib...

oasdiff does not enforce --allow-external-refs=false on the git-revision load path (SSRF / local file read)

Summary From v1.13.2 through v1.18.0, oasdiff did not enforce --allow-external-refs=false library: openapi3.Loader.IsExternalRefsAllowed = false when loading a spec from a git revision the rev:path form, e.g. main:openapi.yaml. External $refs were resolved on that load path even when external ref...

GHSA-2JCC-MXV7-P3F9 oasdiff does not enforce --allow-external-refs=false on the git-revision load path (SSRF / local file read)

Summary From v1.13.2 through v1.18.0, oasdiff did not enforce --allow-external-refs=false library: openapi3.Loader.IsExternalRefsAllowed = false when loading a spec from a git revision the rev:path form, e.g. main:openapi.yaml. External $refs were resolved on that load path even when external ref...

mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files

In mcp-server-git versions prior to 2025.12.18, the gitdiff and gitcheckout functions passed user-controlled arguments directly to git CLI commands without sanitization. Flag-like values e.g., --output=/path/to/file for gitdiff would be interpreted as command-line options rather than git refs,...

PT-2026-56295

Name of the Vulnerable Software and Affected Versions oasdiff versions 1.13.2 through 1.18.0 Description When loading a specification from a git revision using the rev:path format, the software fails to enforce the --allow-external-refs=false setting specifically the...

PYSEC-2026-840 Loggerhead XSS via filename

Cross-site scripting XSS vulnerability in templatefunctions.py in Loggerhead before 1.18.1 allows remote authenticated users to inject arbitrary web script or HTML via a filename, which is not properly handled in a revision view...

Loggerhead XSS via filename

Cross-site scripting XSS vulnerability in templatefunctions.py in Loggerhead before 1.18.1 allows remote authenticated users to inject arbitrary web script or HTML via a filename, which is not properly handled in a revision view...

CVE-2026-58025

Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php. This issue affects MediaWiki: from before 1.46.0, 1.45.4,...

CVE-2026-58025

Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php. This issue affects MediaWiki: from before 1.46.0, 1.45.4,...

CVE-2026-58025

CVE-2026-58025 describes a deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki (affected components: includes/Import/WikiImporter.php, includes/Import/WikiRevision.php, includes/Logging/LogEntryBase.php) that affects MediaWiki releases prior to 1.46.0, including 1.45...

CVE-2026-47155

A flaw was found in vLLM, an inference and serving engine for large language models LLMs. The revision pinning controls in vLLM do not consistently apply to all artifacts loaded for a model. This allows a deployment configured with specific revisions to still load dynamic code or other...

GO-2026-5272 Tekton Pipelines git resolver revision parameter argument injection in github.com/tektoncd/pipeline

Tekton Pipelines git resolver revision parameter argument injection in github.com/tektoncd/pipeline...

CVE-2026-57286

A missing permission check in Jenkins Git Parameter Plugin 462.vdcf3df2ed2ca and earlier allows attackers with Item/Read permission to obtain information about the SCM repository used by a job, such as branch names, tag names, and revision metadata...

CVE-2026-57286

A missing permission check in Jenkins Git Parameter Plugin 462.vdcf3df2ed2ca and earlier allows attackers with Item/Read permission to obtain information about the SCM repository used by a job, such as branch names, tag names, and revision metadata...

CVE-2026-57286

A missing permission check in Jenkins Git Parameter Plugin 462.vdcf3df2ed2ca and earlier allows attackers with Item/Read permission to obtain information about the SCM repository used by a job, such as branch names, tag names, and revision metadata...

CVE-2026-57286

A missing permission check in Jenkins Git Parameter Plugin 462.vdcf3df2ed2ca and earlier allows attackers with Item/Read permission to obtain information about the SCM repository used by a job, such as branch names, tag names, and revision metadata...