Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-35039

fast-jwt provides fast JSON Web Token (JWT) implementation. From 0.0.1 to before 6.2.0, setting up a custom cacheKeyBuilder method which does not properly create unique keys for different tokens can lead to cache collisions. This could cause tokens to be mis-identified during the verification process leading to valid tokens returning claims from different valid tokens and users being mis-identified as other users based on the wrong token. Version 6.2.0 contains a patch.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1325d537e300b6f33b692723765774f3392fb262a881fd011d8d5c9c56e2460f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-1289","description":"CWE-1289: Improper Validation of Unsafe Equivalence in Input","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:79557e0099cbf6044aa2783ac59835d0ba859fc071045672129661915c0da675 · sha256:9c65a7ddb734acc6… · /containers/cna/problemTypes/2/descriptions/0

{"cweId":"CWE-706","description":"CWE-706: Use of Incorrectly-Resolved Name or Reference","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:79557e0099cbf6044aa2783ac59835d0ba859fc071045672129661915c0da675 · sha256:9c65a7ddb734acc6… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:79557e0099cbf6044aa2783ac59835d0ba859fc071045672129661915c0da675 · sha256:9c65a7ddb734acc6… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"fast-jwt","vendor":"nearform","versions":[{"status":"affected","version":">= 0.0.1, < 6.2.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:79557e0099cbf6044aa2783ac59835d0ba859fc071045672129661915c0da675 · sha256:9c65a7ddb734acc6… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:v2:79557e0099cbf6044aa2783ac59835d0ba859fc071045672129661915c0da675 · sha256:9c65a7ddb734acc6… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-1289","description":"CWE-1289: Improper Validation of Unsafe Equivalence in Input","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:79557e0099cbf6044aa2783ac59835d0ba859fc071045672129661915c0da675 · sha256:9c65a7ddb734acc6… · /containers/cna/problemTypes/2/descriptions/0
{"cweId":"CWE-706","description":"CWE-706: Use of Incorrectly-Resolved Name or Reference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:79557e0099cbf6044aa2783ac59835d0ba859fc071045672129661915c0da675 · sha256:9c65a7ddb734acc6… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:79557e0099cbf6044aa2783ac59835d0ba859fc071045672129661915c0da675 · sha256:9c65a7ddb734acc6… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/nearform/fast-jwt/commit/de121056c6415b58770c60640881eaec67ac4ceb","tags":["x_refsource_MISC"],"url":"https://github.com/nearform/fast-jwt/commit/de121056c6415b58770c60640881eaec67ac4ceb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:79557e0099cbf6044aa2783ac59835d0ba859fc071045672129661915c0da675 · sha256:9c65a7ddb734acc6… · /containers/cna/references/1
{"name":"https://github.com/nearform/fast-jwt/security/advisories/GHSA-rp9m-7r4c-75qg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nearform/fast-jwt/security/advisories/GHSA-rp9m-7r4c-75qg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:79557e0099cbf6044aa2783ac59835d0ba859fc071045672129661915c0da675 · sha256:9c65a7ddb734acc6… · /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.

← Back to CVE Explorer