Loading vulnerability…
CVE-2026-87719 is a critical insecure deserialization vulnerability in the GraphQL subscription serializer in GitLab Enterprise Edition. A suitably authenticated user with GitLab Duo Chat access can submit a crafted GraphQL subscription argument that bypasses serialization controls and causes server-side object lookup. The issue can expose Advanced Search instance configuration and associated sensitive credentials. Affected releases are GitLab EE 18.3 through 19.1.7, 19.2.0 through 19.2.5, and 19.3.0 through 19.3.1.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
21 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Critical GitLab EE vulnerability that enables an authenticated user with Duo Chat access to access configurations and sensitive data.
A critical authenticated GitLab EE flaw affecting users with Duo Chat access. A crafted GraphQL subscription argument can bypass serialization and enable server object lookup, exposing sensitive credentials and Advanced Search instance configuration.
A CVSS 9.9 authenticated vulnerability in GitLab Enterprise Edition through which a user with Duo Chat access can obtain Advanced Search configuration settings and stored passwords.
Critical insecure-deserialization and information-disclosure vulnerability in GitLab Enterprise Edition. A Duo Chat-authorized authenticated user can use a specially crafted GraphQL subscription argument to bypass serialization and look up server objects, exposing Advanced Search configuration and credentials.
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.