CVE Explorer

CVE-2026-43911

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.5, refresh tokens are not invalidated when the user's security_stamp is rotated by some security-sensitive operations (password change, KDF change, key rotation, email change, org admin password reset, emergency access takeover). This allows an attacker holding a previously obtained refresh token to maintain session access even after the user has taken action to secure their account. This vulnerability is fixed in 1.35.5

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6aab32d2b5ca4c41af6e91ce0e93b7065eeea2a2c077dc71b6d39c259cd05c56

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"vaultwarden","vendor":"dani-garcia","versions":[{"status":"affected","version":"< 1.35.5"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:bde5ff6800c9fb873b418109da19e7046b70ddacc44c9a345fca5363b357392b · sha256:66aeabb15bee6f45… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

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

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:bde5ff6800c9fb873b418109da19e7046b70ddacc44c9a345fca5363b357392b · sha256:66aeabb15bee6f45… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-613","description":"CWE-613: Insufficient Session Expiration","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:bde5ff6800c9fb873b418109da19e7046b70ddacc44c9a345fca5363b357392b · sha256:66aeabb15bee6f45… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6j4w-g4jh-xjfx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6j4w-g4jh-xjfx"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:bde5ff6800c9fb873b418109da19e7046b70ddacc44c9a345fca5363b357392b · sha256:66aeabb15bee6f45… · /containers/cna/references/0

{"tags":["exploit"],"url":"https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6j4w-g4jh-xjfx"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:bde5ff6800c9fb873b418109da19e7046b70ddacc44c9a345fca5363b357392b · sha256:66aeabb15bee6f45… · /containers/adp/0/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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