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CVE-2021-39935 is a server-side request forgery vulnerability in GitLab Community Edition and Enterprise Edition's CI Lint API. Insufficient authorization controls allow unauthorized external users to cause a vulnerable GitLab server to issue requests. Affected releases include versions from 10.5 before 14.3.6, 14.4 before 14.4.4, and 14.5 before 14.5.2.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
30 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A GitLab vulnerability historically flagged by CISA as exploited in attacks; no further technical details are provided.
Vulnérabilité GitLab historique citée comme ayant été exploitée en conditions réelles selon la CISA. Le contenu ne fournit pas de détail technique sur la faille.
A GitLab server-side request forgery (SSRF) vulnerability involving the CI Lint API access controls, patched in 2021 but later observed exploited in the wild against still-exposed instances.
A GitLab CE/EE server-side request forgery (SSRF) vulnerability in the CI Lint API that can allow unauthorized external users (in certain configurations) to make server-side requests, potentially enabling access to internal resources.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.