CVE Explorer
CVE-2026-48758
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.
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":"< 3.2.1"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:a0e5d21b1cb529256e6ef3e11651f9b97caa4e7826f7610c3ab50ce68b4a7cd0 · sha256:31709bc5a5de025e… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:a0e5d21b1cb529256e6ef3e11651f9b97caa4e7826f7610c3ab50ce68b4a7cd0 · sha256:31709bc5a5de025e… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:a0e5d21b1cb529256e6ef3e11651f9b97caa4e7826f7610c3ab50ce68b4a7cd0 · sha256:31709bc5a5de025e… · /containers/cna/problemTypes/0/descriptions/0
Source references
5 source assertions{"name":"https://github.com/sigstore/sigstore-js/commit/b5aa4f1f8d2db0a9dfa6430fb114d9c2f1c304f7","tags":["x_refsource_MISC"],"url":"https://github.com/sigstore/sigstore-js/commit/b5aa4f1f8d2db0a9dfa6430fb114d9c2f1c304f7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a0e5d21b1cb529256e6ef3e11651f9b97caa4e7826f7610c3ab50ce68b4a7cd0 · sha256:31709bc5a5de025e… · /containers/cna/references/2
{"name":"https://github.com/sigstore/sigstore-js/pull/1657","tags":["x_refsource_MISC"],"url":"https://github.com/sigstore/sigstore-js/pull/1657"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a0e5d21b1cb529256e6ef3e11651f9b97caa4e7826f7610c3ab50ce68b4a7cd0 · sha256:31709bc5a5de025e… · /containers/cna/references/1
{"name":"https://github.com/sigstore/sigstore-js/releases/tag/%40sigstore%2Fcore%403.2.1","tags":["x_refsource_MISC"],"url":"https://github.com/sigstore/sigstore-js/releases/tag/%40sigstore%2Fcore%403.2.1"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a0e5d21b1cb529256e6ef3e11651f9b97caa4e7826f7610c3ab50ce68b4a7cd0 · sha256:31709bc5a5de025e… · /containers/cna/references/3
{"name":"https://github.com/sigstore/sigstore-js/security/advisories/GHSA-jfc7-64v2-mr8c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/sigstore/sigstore-js/security/advisories/GHSA-jfc7-64v2-mr8c"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a0e5d21b1cb529256e6ef3e11651f9b97caa4e7826f7610c3ab50ce68b4a7cd0 · sha256:31709bc5a5de025e… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/sigstore/sigstore-js/security/advisories/GHSA-jfc7-64v2-mr8c"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a0e5d21b1cb529256e6ef3e11651f9b97caa4e7826f7610c3ab50ce68b4a7cd0 · sha256:31709bc5a5de025e… · /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.