HIGH 8.7 NVD
CVE-2026-90774
rustypaste 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.
References
- https://github.com/orhun/rustypaste
- https://github.com/orhun/rustypaste/blob/v0.18.0/src/paste.rs
- https://github.com/orhun/rustypaste/commit/ac05d552596af4a8429d80f30d11f67117ce02c8
- https://github.com/orhun/rustypaste/issues/622
- https://www.vulncheck.com/advisories/rustypaste-before-0.18.1-path-traversal-via-filename-
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-09-13 via NVD.
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