CVE-2025-8262

low-risk

Published 2025-07-28

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.

Do I need to act?

0.16% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.3/10 Medium

NETWORK / LOW complexity

Affected Products (1)

Yarn

Affected Vendors

Yarnpkg

References (5)

Exploit https://github.com/yarnpkg/yarn/pull/9199

Patch https://github.com/yarnpkg/yarn/pull/9199/commits/97731871e674bf93bcbf29e9d3258d...

Permissions Required https://vuldb.com/?ctiid.317850

Third Party Advisory https://vuldb.com/?id.317850

Third Party Advisory https://vuldb.com/?submit.617393

/ 100

low-risk

Severity 18/34 · Moderate

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal