CVE-2026-50162
Prior to 2.6.1, resolveWritePath() in content/file/file.go uses a lexical filepath.Rel check for workingDir and does not account for symlink traversal, so when AllowPathTraversalOnWrite=false an attacker-controlled blob title through…
Does this matter?
Lower severity and a low EPSS score (0.51%). Track it; it rarely justifies an emergency change on its own.
Description
oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, resolveWritePath() in content/file/file.go uses a lexical filepath.Rel check for workingDir and does not account for symlink traversal, so when AllowPathTraversalOnWrite=false an attacker-controlled blob title through ocispec.AnnotationTitle such as out/pwn.txt can follow a workingDir symlink out -> /some/outside/dir and cause pushFile() to create /some/outside/dir/pwn.txt outside workingDir. This issue is fixed in version 2.6.1.
- CVSS 4.0
- 6.9 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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/M
- EPSS
- 0.51% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-73
- Source
- security-advisories@github.com
References
- https://github.com/oras-project/oras-go/commit/cc323e564d90c6b5b4bdd71d3c8d2ee2713b37e5
- https://github.com/oras-project/oras-go/releases/tag/v2.6.1
- https://github.com/oras-project/oras-go/security/advisories/GHSA-8xwf-rjm4-xvhv
- https://github.com/oras-project/oras-go/security/advisories/GHSA-8xwf-rjm4-xvhv
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.