CVE Explorer

CVE-2026-9699

Mattermost Plugins versions <=11.6 10.18.11 11.3.6 11.6.5.0 fail to sanitize error responses from the OpenAI API before logging, which allows a user with access to server logs or support packets to obtain a valid or partially reconstructable OpenAI API key via inspection of mattermost.log entries generated during authentication failures. Mattermost Advisory ID: MMSA-2026-00609

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8ae17b155cf5f0919c2224922de73619cfc40f0fff2c6e75edfd4bdf488184bb

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"Mattermost","vendor":"Mattermost","versions":[{"lessThanOrEqual":"10.18.11","status":"affected","version":"0","versionType":"semver"},{"lessThanOrEqual":"11.3.6","status":"affected","version":"0","versionType":"semver"},{"lessThanOrEqual":"11.6.5","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"11.7.0"},{"status":"unaffected","version":"10.11.19"},{"status":"unaffected","version":"11.6.4"},{"status":"unaffected","version":"11.5.7"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:aaf392315b2b66cd455df86920b6b4a26db16a6276605b30368a236395ae34c3 · sha256:5857c323ae7b974a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:aaf392315b2b66cd455df86920b6b4a26db16a6276605b30368a236395ae34c3 · sha256:5857c323ae7b974a… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-532","description":"CWE-532: Insertion of Sensitive Information into Log Files","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:aaf392315b2b66cd455df86920b6b4a26db16a6276605b30368a236395ae34c3 · sha256:5857c323ae7b974a… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"MMSA-2026-00609","tags":["vendor-advisory"],"url":"https://mattermost.com/security-updates"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:aaf392315b2b66cd455df86920b6b4a26db16a6276605b30368a236395ae34c3 · sha256:5857c323ae7b974a… · /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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