CVE-2026-50573

HIGH
MEDIUM Priority: 0.01 BB Relevance: 66/100
Published: 2026-06-25 Modified: 2026-11-03 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: None

Description

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, `pnpm install` in non-frozen mode can accept new remote package content after detecting that the downloaded tarball does not match the integrity recorded in pnpm-lock.yaml. When a package is already locked with an integrity value, and the registry later serves different metadata and tarball content for the same package name and version, pnpm initially reports an integrity mismatch. However, plain pnpm install then performs a resolution repair, accepts the registry's new integrity, updates the lockfile, installs the new content, and exits successfully. This means the lockfile integrity check does not act as a hard stop by default. This vulnerability is fixed in 10.34.0 and 11.4.0.

Affected Software (3)

VendorProductVersion
pnpm pnpm < 10.33.4
pnpm pnpm >= 11.0.0, < 11.4.0
pnpm pnpm < 10.34.0

References & Advisories (1)

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

8.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.17%
Raw Score 0.001680
Percentile 6.1%
Date 2026-11-05

EPSS Trend

2026-11-05
0.00168
2026-11-04
0.00168
2026-11-03
0.00168

Intelligence Sources

mitre ref →
nvd ref →