CVE-2025-8262

5.3 mediumEPSS 0.8%

Medium (5.3) in yarnpkg yarn. EPSS 0.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.3 medium

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

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
CWEs: CWE-1333, CWE-400
Published: 2025-07-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

yarnpkg:yarn

References

https://github.com/yarnpkg/yarn/pull/9199
https://github.com/yarnpkg/yarn/pull/9199/commits/97731871e674bf93bcbf29e9d3258da8685f3076
https://vuldb.com/?ctiid.317850
https://vuldb.com/?id.317850
https://vuldb.com/?submit.617393

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