CVE-2025-8262
yarnpkg Yarn hosted-git-resolver.js explodeHostedGitFragment redos
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
yarnpkg Yarn hosted-git-resolver.js explodeHostedGitFragment redos
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.
- Record
CVE-2025-8262- 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/E:X - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C - CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C - CVSS 2.0
- 4.0
AV:N/AC:L/Au:S/C:N/I:N/A:P/E:ND/RL:OF/RC:C - Weakness
- CWE-1333, CWE-400
- Updated
- 2026-11-02
EUVDEUVD-2025-22855
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.
- Record
EUVD-2025-22855- 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/E:X - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-9xhp-f235-5v37
A vulnerability was found in yarnpkg Yarn up to 1.22.22. It has been classified as problematic....
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.
- Record
GHSA-9xhp-f235-5v37- 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/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:X/V:X/RE:X/U:X - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-400
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-8262- 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/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:X/V:X/RE:X/U:X - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - 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 - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:N/A:P - Weakness
- CWE-400, CWE-1333
- Updated
- 2026-11-02
OSVBELL-CVE-2025-8262
- Record
BELL-CVE-2025-8262- 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 - Updated
- 2026-11-02
OSV
yarnpkg Yarn hosted-git-resolver.js explodeHostedGitFragment redos
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.
- Record
CVE-2025-8262- 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/E:X - Weakness
- CWE-1333, CWE-400
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2025-8262
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.
- Record
DEBIAN-CVE-2025-8262- 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 - Updated
- 2026-11-02
OSVUBUNTU-CVE-2025-8262
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.
- Record
UBUNTU-CVE-2025-8262- 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 - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
yarnAlpaquita:23 |
1.22.19-r0 and later | None known |
yarnAlpaquita:25 |
1.22.22-r1 and later | None known |
yarnAlpaquita:stream |
1.22.19-r0 and later | None known |
node-yarnpkgDebian:12 |
All versions, plus listed versions 1.22.19+~cs24.27.18-21.22.19+~cs24.27.18-2+deb12u11.22.19+~cs24.27.18-31.22.19+~cs24.27.18-44.0.0-rc.53+dfsg-1 Show 13 moreShow less4.0.1+dfsg-14.0.1+dfsg-24.0.2+dfsg-14.0.2+dfsg-24.0.2+dfsg-34.1.0+dfsg-14.1.0+dfsg-34.1.0+dfsg-44.1.0+dfsg-54.1.0+dfsg-64.1.0+dfsg-74.1.0+dfsg-84.1.0+dfsg-9 |
None known |
node-yarnpkgDebian:13 |
All versions, plus listed versions 4.1.0+dfsg-14.1.0+dfsg-34.1.0+dfsg-44.1.0+dfsg-54.1.0+dfsg-64.1.0+dfsg-74.1.0+dfsg-84.1.0+dfsg-9 |
None known |
node-yarnpkgDebian:14 |
All versions, plus listed versions 4.1.0+dfsg-14.1.0+dfsg-34.1.0+dfsg-44.1.0+dfsg-54.1.0+dfsg-64.1.0+dfsg-74.1.0+dfsg-84.1.0+dfsg-9 |
None known |
node-yarnpkgUbuntu:20.04:LTS |
All versions, plus listed versions 1.13.0-1build11.13.0-31.19.1-11.22.4-2 |
None known |
node-yarnpkgUbuntu:22.04:LTS |
All versions, plus listed versions 1.22.10+~cs22.25.14-31.22.10+~cs22.25.14-41.22.10+~cs22.25.14-51.22.10+~cs22.25.14-8 |
None known |
node-yarnpkgUbuntu:24.04:LTS |
All versions, plus listed versions 1.22.19+~cs24.27.18-21.22.19+~cs24.27.18-4 |
None known |
node-yarnpkgUbuntu:25.10 |
All versions, plus listed versions 4.0.2+dfsg-34.1.0+dfsg-1 |
None known |
node-yarnpkgUbuntu:26.10 |
All versions, plus listed versions 4.1.0+dfsg-14.1.0+dfsg-6ubuntu24.1.0+dfsg-7ubuntu1 |
None known |
node-yarnpkgUbuntu:26.04:LTS |
All versions, plus listed versions 4.1.0+dfsg-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-8262 is a medium vulnerability (CVSS 5.3) in Yarnpkg Yarn, published July 28, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.84%, the 58th percentile. No source names a fixed version.