File writes outside workingDir via symlink traversal
Published Jul 17, 2026 · Updated Jul 17, 2026
Path traversal in ORAS Project oras-go before 2.6.1 allows remote attackers to write files outside workingDir via crafted blob titles. resolveWritePath() accepts a lexically confined ocispec.AnnotationTitle without resolving symlinked path components, and pushFile() follows the symlink when creating the file. Exploitation requires a consuming application to use the file store with AllowPathTraversalOnWrite=false and a workingDir symlink; the write is limited by the process's filesystem permissions.
Summary
What happened
Path traversal in ORAS Project oras-go before 2.6.1 allows remote attackers to write files outside workingDir via crafted blob titles. resolveWritePath() accepts a lexically confined ocispec.AnnotationTitle without resolving symlinked path components, and pushFile() follows the symlink when creating the file. Exploitation requires a consuming application to use the file store with AllowPathTraversalOnWrite=false and a workingDir symlink; the write is limited by the process's filesystem permissions.
The record
- CVE
- CVE-2026-50162
- Published
- Jul 17, 2026
- Updated
- Jul 17, 2026
- Vendor
- ORAS Project
- Product
- oras-go
- Classifications
- CWE-73, T1105
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 17, 2026CVE publishedPublication date reported by the CVE source.
- Jul 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< 2.6.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- GHSA-8xwf-rjm4-xvhv self-contained Go proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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