CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2026-55487
High (8.8) in pnpm pnpm. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in pnpm 10.34.2, 11.5.3.
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.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-346, CWE-693, CWE-829
- Published
- Modified
- Record from
- the NVD, synced
Affected
- pnpm:pnpm
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-5wx6-mg75-v57r | npm | pnpm | <10.34.2 | 10.34.2 |
| GHSA-5wx6-mg75-v57r | npm | pnpm | >=11.0.0 <11.5.3 | 11.5.3 |