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CVE-2026-31942

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. In versions up to and including 0.7.6, an Insecure Direct Object Reference (IDOR) vulnerability exists in the API keys management endpoint (PUT /api/keys). Due to the use of the JavaScript object spread operator after setting the authenticated user's ID, any authenticated user can inject a userId parameter in the request body to overwrite any other user's API keys (e.g., OpenAI, Anthropic, Azure). This allows an attacker
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8d2083a96f404b1298c97a6fec14ca8ff9570d84c6613384ebf383162542bed9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"LibreChat","vendor":"danny-avila","versions":[{"status":"affected","version":"< 0.8.3-rc1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:02e9db1157dfce713685a31f7e34d9c0e8fa6175f259378b432bb8f0a91719fe · sha256:c3ca980570704bb6… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:02e9db1157dfce713685a31f7e34d9c0e8fa6175f259378b432bb8f0a91719fe · sha256:c3ca980570704bb6… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:02e9db1157dfce713685a31f7e34d9c0e8fa6175f259378b432bb8f0a91719fe · sha256:c3ca980570704bb6… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/danny-avila/LibreChat/security/advisories/GHSA-5jcj-rh68-cgj7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/danny-avila/LibreChat/security/advisories/GHSA-5jcj-rh68-cgj7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:02e9db1157dfce713685a31f7e34d9c0e8fa6175f259378b432bb8f0a91719fe · sha256:c3ca980570704bb6… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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