CVE-2026-24056Public exploit

Local file disclosure via unchecked dependency symlinks

Published Jan 26, 2026 · Updated Jan 26, 2026

Path traversal in pnpm before 10.28.2 allows attackers to read local files through crafted file or git dependencies. In store/cafs/src/addFilesFromDir.ts, fs.statSync and fs.readFileSync follow package symlinks without checking that resolved targets remain inside the package root. Exploitation requires a developer or CI job to install the malicious dependency; registry packages are unaffected because publishing strips symlinks.

CVSS severity6.7
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in pnpm before 10.28.2 allows attackers to read local files through crafted file or git dependencies. In store/cafs/src/addFilesFromDir.ts, fs.statSync and fs.readFileSync follow package symlinks without checking that resolved targets remain inside the package root. Exploitation requires a developer or CI job to install the malicious dependency; registry packages are unaffected because publishing strips symlinks.

The record

CVE
CVE-2026-24056
Published
Jan 26, 2026
Updated
Jan 26, 2026
Vendor
pnpm
Product
pnpm
Classifications
CWE-59, CWE-22, T1552.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 10.28.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

pnpm · pnpmversion=< 10.28.2

Published CVSS scores

6.7GitHub, Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1552.001Credentials In Files

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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