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CVE-2026-12311

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9306ee442819b0f2158d4fe8554975235c73c92d1d312b3dc8c01c5cb089092d
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/cna/affected/1

{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/cna/affected/0
cwe · 2 assertions

{"cweId":"CWE-200","description":"CWE-200 Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/adp/0/problemTypes/1/descriptions/0

{"cweId":"CWE-688","description":"CWE-688 Function Call With Incorrect Variable or Reference as Argument","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

2 source assertions
{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/cna/affected/1
{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-200","description":"CWE-200 Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/adp/0/problemTypes/1/descriptions/0
{"cweId":"CWE-688","description":"CWE-688 Function Call With Incorrect Variable or Reference as Argument","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

5 source assertions
{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2040177"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/cna/references/0
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-57/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/cna/references/1
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-58/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/cna/references/2
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-60/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/cna/references/3
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-61/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:98f68cc52914e19876311285397de0f7501c1417710b152b67330f89ad41a4d4 · sha256:a87eca597aef3675… · /containers/cna/references/4

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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