CVE-2026-86544

Summary

knowns versions before 0.30.0 contain an authorization bypass vulnerability where mutating code actions are incorrectly classified as read-only operations. Attackers with read-restricted sessions can exploit code.replace to modify permission configurations and escalate privileges on subsequent calls.

Affected Software

Weaknesses

• CWE-863: Incorrect Authorization

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/knowns-dev/knowns/security/advisories/GHSA-w323-3wpx-f7g5
• https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/permissions/registry.go#L99-L140
• https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/permissions/guard.go#L44-L60
• https://github.com/knowns-dev/knowns/commit/a2c98fc5c313463576c9348beeec6a74ddd7333b
• https://github.com/knowns-dev/knowns/releases/tag/v0.30.0
• https://www.vulncheck.com/advisories/knowns-before-0.30.0-authorization-bypass-via-misclassified-code-actions

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