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CVE-2026-48816

MEDIUM
6.5
CVSS 3.1
Description
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.

Metadata

CVE ID
CVE-2026-48816
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-22 20:57 UTC
Published
2026-07-14 20:39 UTC
Last updated
2026-07-14 20:39 UTC
Primary CWE
CWE-345
CWE-345: Insufficient Verification of Data Authenticity
Vendor / Product
sigstore / sigstore-js
Sources
cve.org  ·  NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected products (1)
VendorProductPlatformVersions
sigstore sigstore-js — < 3.1.1
Weakness (CWE)
CWESourceDescription
CWE-345 cna CWE-345: Insufficient Verification of Data Authenticity
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.5 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
References (4)
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