CVE-2026-90774
highrustypaste before 0.18.1 validates the destination path before applying the optional custom filename HTTP header, allowing attackers to bypass directory-escape…
rustypaste before 0.18.1 validates the destination path before applying the optional custom filename HTTP header, allowing attackers to bypass directory-escape checks. Attackers can supply path traversal sequences in the filename header to write files outside the configured upload directory to arbitrary locations.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-09-13 11:17
Modified: 2026-09-23 17:17
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-10-27 06:52 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/orhun/rustypaste disclosure@vulncheck.com
- https://github.com/orhun/rustypaste/blob/v0.18.0/src/paste.rs disclosure@vulncheck.com
- https://github.com/orhun/rustypaste/commit/ac05d552596af4a8429d80f30d11f67117ce02c8 disclosure@vulncheck.com
- https://github.com/orhun/rustypaste/issues/622 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/rustypaste-before-0.18.1-path-traversal-via-filename-... disclosure@vulncheck.com
- https://github.com/orhun/rustypaste/issues/622 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗