CVE-2026-42575General

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

apko allows users to build and publish OCI container images built from apk packages. Prior to version 1.2.7, apko verifies the signature on APKINDEX.tar.gz but never compares individually downloaded .apk packages against the checksum recorded in the signed index. The checksum is parsed and available via ChecksumString(), and the downloaded package control hash is computed, but the two values are never compared in getPackageImpl(). Mismatched packages are silently accepted. An attacker who can substitute download responses (compromised mirror, HTTP repository, poisoned CDN cache) can install arbitrary packages into built images. This issue has been patched in version 1.2.7.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-345CWE-494

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 3 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • General: 2 classified signals
  • Disclosure: 1 classified signal
  • Peaked 2d ago at 1 mentions (2026-05-05); latest day: 1
  • 3 total mentions across 3 days

Deep dive

Activity timeline3 mentions / 3d
00111Mentions · 2026-05-05: 1Mentions · 2026-05-09: 1Mentions · 2026-05-10: 1Technical Details · 2026-05-09: 105-0505-0905-10
Signal classification2 categories
General
266.7%
Disclosure
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-05-051
General1
2026-05-091
Disclosure1
2026-05-101
General1
Full discourse3 posts
  • CVE@CVEnew
    General

    CVE-2026-42575 apko allows users to build and publish OCI container images built from apk packages. Prior to version 1.2.7, apko verifies the signature on APKINDEX.tar.gz but never … https://www.cve.org/CVERecord?id=CVE-2026-42575

    Post summary

    The text briefly mentions CVE‑2026‑42575 and notes a missing signature verification in apko before v1.2.7, but offers no detailed technical data, exploitation evidence, or remediation guidance.

    0001081
    57.5K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-42575 Checksum Validation Bypass in apko Versions Prior to 1.2.7 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-42575

    Post summary

    The text announces a vulnerability CVE-2026-42575, detailing a checksum validation bypass in apko versions prior to 1.2.7.

    0000040
    4.0K followersView on X
  • DailyCVE@dailycve
    General

    🔴 apko, Package Substitution, #CVE-2026-42575 (High) https://dailycve.com/apko-package-substitution-cve-2026-42575-high/

    Post summary

    The post announces CVE-2026-42575 with minimal detail and offers no evidence of exploitation, patches, or technical specifics.

    0000031
    191 followersView on X

Explore more