RUSTSEC-2026-0427 json
`sn-releases`: `extract_release_archive` writes archive entries without a path-traversal check (zip-slip)
published 2026-10-29 10 d ago modified 2026-10-30 9 d ago
- cvss
- 8.8
- version 3.1, OSV
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- —
- no score, EPSS covers CVEs only
- public exploits
- 0
- none known
Summary
`SafeReleaseRepoActions::extract_release_archive` builds each output path from the **raw archive entry name** and writes to it with no traversal check, so a malicious release archive can create directories and write files **outside** the destination directory, a "zip-slip" / path traversal (CWE-22 / CWE-23).
In `src/lib.rs` (`extract_release_archive`, zip branch):
```rust let mut file = archive.by_index(i)?; let out_path = dest_dir_path.join(file.name()); // file.name() is the raw entry name if file.name().ends_with('/') { std::fs::create_dir_all(&out_path)?; // no `..` check } else { let mut outfile = std::fs::File::create(&out_path)?; // writes outside dest std::io::copy(&mut file, &mut outfile)?; } ```
The crate is unmaintained (latest release 0.3.1, 2024-10-22) and no fixed version is available.
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| OSV | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | sn-releases | >=0.0.0-0 |
no fix listed |
References
Sources
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.