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CVE-2026-48816

sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 3.1.1, @sigstore/verify derives a transparency-log timestamp from tlogEntries[].integratedTime for bundle v0.2 inclusionProof-only entries even though the inclusion proof path does not cryptographically bind integratedTime, allowing an attacker who can supply an untrusted bundle to influence certificate validity and timestampThreshold verification decisions. This issue is fixed in version 3.1.1.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e540d1f6c35812e66985622576c7b6fef1441c4d19675447cb5f78cf94f68dfb
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"sigstore-js","vendor":"sigstore","versions":[{"status":"affected","version":"< 3.1.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3e6c182586a2dfffda27716d385983f17de0d927201ae8000738f189896ddcb4 · sha256:7783dc8e3c176d8c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","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:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e6c182586a2dfffda27716d385983f17de0d927201ae8000738f189896ddcb4 · sha256:7783dc8e3c176d8c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3e6c182586a2dfffda27716d385983f17de0d927201ae8000738f189896ddcb4 · sha256:7783dc8e3c176d8c… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"name":"https://github.com/sigstore/sigstore-js/commit/f074710a91ea9260a9ac2142345634579843a3cd","tags":["x_refsource_MISC"],"url":"https://github.com/sigstore/sigstore-js/commit/f074710a91ea9260a9ac2142345634579843a3cd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e6c182586a2dfffda27716d385983f17de0d927201ae8000738f189896ddcb4 · sha256:7783dc8e3c176d8c… · /containers/cna/references/2
{"name":"https://github.com/sigstore/sigstore-js/pull/1659","tags":["x_refsource_MISC"],"url":"https://github.com/sigstore/sigstore-js/pull/1659"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e6c182586a2dfffda27716d385983f17de0d927201ae8000738f189896ddcb4 · sha256:7783dc8e3c176d8c… · /containers/cna/references/1
{"name":"https://github.com/sigstore/sigstore-js/releases/tag/%40sigstore%2Fverify%403.1.1","tags":["x_refsource_MISC"],"url":"https://github.com/sigstore/sigstore-js/releases/tag/%40sigstore%2Fverify%403.1.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e6c182586a2dfffda27716d385983f17de0d927201ae8000738f189896ddcb4 · sha256:7783dc8e3c176d8c… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/sigstore/sigstore-js/security/advisories/GHSA-xgjw-pm74-86q4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e6c182586a2dfffda27716d385983f17de0d927201ae8000738f189896ddcb4 · sha256:7783dc8e3c176d8c… · /containers/adp/0/references/0
{"name":"https://github.com/sigstore/sigstore-js/security/advisories/GHSA-xgjw-pm74-86q4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/sigstore/sigstore-js/security/advisories/GHSA-xgjw-pm74-86q4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e6c182586a2dfffda27716d385983f17de0d927201ae8000738f189896ddcb4 · sha256:7783dc8e3c176d8c… · /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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