CVE-2026-55487
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductPnpm
PublishedJun 25, 2026
First seenJun 25, 2026
Weakness typeCWE-346CWE-346CWE-693CWE-693CWE-829CWE-829
How to fix
Update
- pnpm pnpm10.34.2, 11.5.3 or later
- pnpm10.34.2, 11.5.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pnpm pnpm | v < 10.34.2, 11.0.0 ≤ v < 11.5.3 | 10.34.2, 11.5.3 |
| pnpmnpm | v < 10.34.2, 11.0.0 ≤ v < 11.5.3 | 10.34.2, 11.5.3 |
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