CVEvulnerability
CVE-2026-48758
5.4 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-07-14
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
- Weaknesses
- CWE-347
Description
sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 3.2.1, the preAuthEncoding function in @sigstore/core uses Node.js ascii encoding when converting the PAE string to bytes, allowing payloadType to be mutated after signing without invalidating the signature and breaking the type-binding guarantee that DSSE is designed to provide. This issue is fixed in version 3.2.1.
Related
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- https://github.com/sigstore/sigstore-js/commit/b5aa4f1f8d2db0a9dfa6430fb114d9c2f1c304f7 github.com
- https://github.com/sigstore/sigstore-js/pull/1657 github.com
- https://github.com/sigstore/sigstore-js/releases/tag/%40sigstore%2Fcore%403.2.1 github.com
- https://github.com/sigstore/sigstore-js/security/advisories/GHSA-jfc7-64v2-mr8c github.com
- https://github.com/sigstore/sigstore-js/security/advisories/GHSA-jfc7-64v2-mr8c github.com