Vulnerability record · CVE-2025-8262 · published 28 July 2025

CVE-2025-8262: Yarnpkg yarn uncontrolled resource consumption vulnerability

Yarnpkg · Yarn

A vulnerability was found in yarnpkg Yarn up to 1.22.22. It has been classified as problematic. Affected is the function explodeHostedGitFragment of the file src/resolvers/exotics/hosted-git-resolver.js. The manipulation leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The patch is identified as 97731871e674bf93bcbf29e9d3258da8685f3076. It is recommended to apply a patch to fix this issue.

5.3 CVSS 4.0 Medium EPSS 0.75% · top 47.0% CWE-400 · Uncontrolled resource consumptionCWE-1333 · Inefficient regular expression (ReDoS)

5.3CVSS 4.0 base score, v2 4.0

0.75%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

5References, 1 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Yarn Yarnpkg

References

Link	Tags
https://github.com/yarnpkg/yarn/pull/9199	Exploit
https://github.com/yarnpkg/yarn/pull/9199/commits/97731871e674bf93bcbf29e9d3258da8685f3076	Patch
https://vuldb.com/?ctiid.317850	Permissions RequiredVDB Entry
https://vuldb.com/?id.317850	Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.617393	Third Party AdvisoryVDB Entry

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-8262), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.