EUVD-2026-28934Published

apko `DiscoverKeys` has a panic on non-rsa jwks key that causes crash during key discovery

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cve-program · CVE-2026-42576

Published

apko allows users to build and publish OCI container images built from apk packages. Prior to version 1.2.7, DiscoverKeys in pkg/apk/apk/implementation.go unconditionally type-asserts JWKS keys as *rsa.PublicKey without checking the key type. If a repository JWKS endpoint returns a non-RSA key (e.g. EC), the unchecked assertion panics and crashes apko. This affects any workflow that initializes the APK database and fetches repository keys. This issue has been patched in version 1.2.7.

Source published: 9 May 2026 19:26:56 UTC
Source modified: 11 May 2026 14:57:58 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

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CVSS 3.1 · 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

euvd · EUVD-2026-28934

Published

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datePublished: May 9, 2026, 7:26:56 PM

dateUpdated: May 11, 2026, 2:57:58 PM

Source published: May 9, 2026, 7:26:56 PM (timezone not stated)
Source modified: May 11, 2026, 2:57:58 PM (timezone not stated)
Saved here: 15 Nov 2026 13:06:09 UTC
Source terms: ENISA EUVD · source terms and attribution apply

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EUVD CVSS 3.1 · 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

nvd · CVE-2026-42576

Published

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NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Deferred

Weakness classifications: CWE-704

Original publisher date fields

published: 2026-05-09T20:16:29.717

lastModified: 2026-07-24T20:10:00.147

Source published: 9 May 2026 20:16:29 UTC
Source modified: 24 Jul 2026 20:10:00 UTC
Saved here: 25 Oct 2026 10:17:15 UTC
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CVSS 3.1 · [email protected] · Secondary · 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

osv · GHSA-m7hm-vm4x-28jf

Published

`DiscoverKeys` in `pkg/apk/apk/implementation.go` unconditionally type-asserts JWKS keys as `*rsa.PublicKey` without checking the key type. If a repository JWKS endpoint returns a non-RSA key (e.g. EC), the unchecked assertion panics and crashes apko. This affects any workflow that initializes the APK database and fetches repository keys. Affected versions <= 0.30.34. **Fix:** No fix available yet. **Acknowledgements** apko thanks Oleh Konko from [1seal](https://1seal.org/) for discovering and reporting this issue.

Source published: 4 May 2026 21:25:30 UTC
Source modified: 10 Sep 2026 03:51:06 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

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CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Publisher rating · MODERATE

osv · GO-2026-5497

Published

apko `DiscoverKeys` has a panic on non-rsa jwks key that causes crash during key discovery in chainguard.dev/apko

Source published: 25 Jun 2026 22:34:31 UTC
Source modified: 22 Jul 2026 20:59:37 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

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