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CVE-2026-1102 is a medium-severity denial-of-service vulnerability in GitLab Community Edition and Enterprise Edition. The issue affects an API endpoint involved in handling SSH authentication requests and can be triggered by repeatedly sending malformed SSH authentication data. Improper handling of malformed input allows an unauthenticated remote attacker to drive the vulnerable service into a denial-of-service condition. Affected versions include all GitLab CE/EE releases from 12.3 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2.
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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.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A medium-severity denial-of-service (DoS) vulnerability in GitLab exploitable via malformed inputs (crafted requests/authentication data/authorization validation/Wiki documents are mentioned generally, without per-CVE mapping).
A GitLab CE/EE denial-of-service vulnerability that can be triggered via repeated malformed SSH authentication requests.
A medium-severity denial-of-service vulnerability affecting a GitLab API endpoint, triggerable by unauthenticated repeated malformed SSH authentication requests.
Medium-severity denial-of-service vulnerability in GitLab that can be triggered by repeated malformed SSH authentication requests.
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.