Vulnerability · RUSTSEC-2026-0367
Insecure Preservation of SUID/SGID Bits during ZIP Extraction Leading to Potential Privilege Escalation
Published Oct 9, 2026 · catalog updated Oct 16, 2026 · RustSec Rust
Open the advisory
Exploitation likelihood is not on this record for RUSTSEC-2026-0367. A missing EPSS score is not a low risk. Compare RustSec Rust with the linked advisory before you change production.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- EPSS is missing. A missing score is not a low risk.
- Severity
- High7.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- Awaiting synchronization with FIRST
- Remediation
- Advisory link
- Affected products
- crates.io zip
The crate preserves privileged Unix permission bits (SUID, SGID, and sticky bits) from ZIP during extraction, instead of masking them to safe permission bits. If a privileged process (for example, in an installer, CI/CD pipeline, or container build) extracts an attacker-controlled ZIP archive using or the stream extraction API, files can be created as setuid-root or setgid. This behavior allows the creation of SUID/SGID files during extraction, which can lead to local privilege escalation depending on the execution environment. For further details see: https://github.com/zip-rs/zip2/security/advisories/GHSA-vv5m-jxxh-4627
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- crates.io zip0.0.0-0 → 9.0.0
How to fix RUSTSEC-2026-0367
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
Exploitation likelihood is not on this record for RUSTSEC-2026-0367. A missing EPSS score is not a low risk. Compare RustSec Rust with the linked advisory before you change production.
Which versions are affected?
Compare what you have installed with 0.0.0-0 → 9.0.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Oct 9, 2026 · GitHub Advisory Database
Detected
The crate preserves privileged Unix permission bits (SUID, SGID, and sticky bits) from ZIP during extraction, instead of masking them to safe permission bits. If a privileged process (for example, in an installer, CI/CD pipeline, or container build) extracts an attacker-controlled ZIP archive using or the stream extraction API, files can be created as setuid-root or setgid. This behavior allows th
Oct 16, 2026 · GitHub Advisory Database
Fix available
zip fixed in 9.0.0
Oct 16, 2026 · GitHub Advisory Database
Fix available
zip fixed in 9.0.0
Oct 16, 2026 · GitHub Advisory Database
Updated
The crate preserves privileged Unix permission bits (SUID, SGID, and sticky bits) from ZIP during extraction, instead of masking them to safe permission bits. If a privileged process (for example, in an installer, CI/CD pipeline, or container build) extracts an attacker-controlled ZIP archive using or the stream extraction API, files can be created as setuid-root or setgid. This behavior allows th
Sources
- GitHub Advisory DatabasePackage advisoryGHSA-vv5m-jxxh-4627
GitHub Advisory Database record mirrored by OSV.
github.com - OpenSSF OSV / OSV ScannerPackage advisoryRUSTSEC-2026-0367
Insecure Preservation of SUID/SGID Bits during ZIP Extraction Leading to Potential Privilege Escalation
osv.dev - RustSec Advisory DBVendor advisoryRUSTSEC-2026-0367
The crate preserves privileged Unix permission bits (SUID, SGID, and sticky bits) from ZIP during extraction, instead of masking them to safe permission bits. If a privileged process (for example, in an installer, CI/CD pipeline, or container build) extracts an attacker-controlle
crates.io
References
Freshness
Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.