CVE-2022-35929
criticalpriority · track · 39EPSS 0.007 · 52 %ileEUUSEPSS · scored 2026-10-27
cosign is a container signing and verification utility. In versions prior to 1.10.1 cosign can report a false positive if any attestation exists. `cosign verify-attestation` used with the `--type` flag will report a false positive verification when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to "custom"). This can happen when signing with a standard keypair and with "keyless" signing with Fulcio. This vulnerability can be reproduced with the `distroless.dev/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2` image. This image has a `vuln` attestation but not an `spdx` attestation. However, if you run `cosign verify-attestation --type=spdx` on this image, it incorrectly succeeds. This issue has been addressed in version 1.10.1 of cosign. Users are advised to upgrade. There are no known workarounds for this issue.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.1–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- GHSA-vjxv-45g9-9296cosign's `cosign verify-attestaton --type` can report a false positive if any attestation exists2022-08-10ghsa · osvUS
`cosign verify-attestation` used with the `--type` flag will report a false positive verification when: - There is at least one attestation with a valid signature - There are NO attestations of the type being verified (--type defaults to "custom") This can happen when signing with a standard keypair and with "keyless" signing with Fulcio. Users should upgrade to cosign version 1.10.1 or greater for a patch. Currently the only workaround is to upgrade.
- BIT-cosign-2022-35929False positive signature verification in cosign2024-03-06vendor · osvUS
cosign is a container signing and verification utility. In versions prior to 1.10.1 cosign can report a false positive if any attestation exists. `cosign verify-attestation` used with the `--type` flag will report a false positive verification when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to "custom"). This can happen when signing with a standard keypair and with "keyless" signing with Fulcio. This vulnerability can be reproduced with the `distroless.dev/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2` image. This image has a `vuln` attestation but not an `spdx` attestation. However, if you run `cosign verify-attestation --type=spdx` on this image, it incorrectly succeeds. This issue has been addressed in version 1.10.1 of cosign. Users are advised to upgrade. There are no known workarounds for this issue.
- GO-2022-0758Improper verification of signature attestations in github.com/sigstore/cosign2023-11-09vendor · osvUS
Improper verification of signature attestations in github.com/sigstore/cosign
also known as (6)
Other names and identifiers for this entity.
- CNNVD-202208-2173cnnvd
- EUVD-2022-6632enisa_euvd
- GHSA-vjxv-45g9-9296enisa_euvd
- BIT-cosign-2022-35929osv
- GHSA-vjxv-45g9-9296osv
- GO-2022-0758osv
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2022-35929cnnvd
- https://cxsecurity.com/cveshow/CVE-2022-35929/cnnvd
- https://github.com/sigstore/cosign/commit/c5fda01a8ff33ca981f45a9f13e7fb6bd2080b94cnnvd
- https://github.com/sigstore/cosign/security/advisories/GHSA-vjxv-45g9-9296cnnvd
- https://vigilance.fr/vulnerability/cosign-weak-signature-39098cnnvd
- https://www.auscert.org.au/bulletins/ESB-2022.4181cnnvd
- https://github.com/sigstore/cosign/commit/c5fda01a8ff33ca981f45a9f13e7fb6bd2080b94enisa_euvd
- https://github.com/sigstore/cosign/security/advisories/GHSA-vjxv-45g9-9296enisa_euvd
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