CVE-2026-55487

Summary

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, the generic peer-suffix normalizer also stripped parenthesized text from git, URL, tarball, file, and other opaque locators. Approval for one source string could therefore authorize a different attacker-controlled source whose locator normalized to the same value. This vulnerability is fixed in 10.34.2 and 11.5.3.

Affected Software

VendorProductVersion RangeStatus
pnpmpnpm< 10.34.2affected
pnpmpnpm>= 11.0.0, < 11.5.3affected

Weaknesses

  • CWE-346: CWE-346: Origin Validation Error
  • CWE-693: CWE-693: Protection Mechanism Failure
  • CWE-829: CWE-829: Inclusion of Functionality from Untrusted Control Sphere

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: total

Additional References

References