high7.5
CVE-2026-68537
`fulgur` converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants.
Impact
`fulgur` converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. In versions prior to 0.19.0, a body-direct child whose CSS-resolved height greatly exceeds the page height was sliced into one fragment per page with no upper bound. This is fixed in version 0.19.0. A `MAX_PAGES` cap bounds the slice loop — halting it even for a `+inf` height — and non-finite layout heights are sanitized so they can no longer drive the loop. As a workaround, validate or constrain untrusted CSS (in particular `height` / `vh` on body-level elements) before passing HTML to fulgur.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rust | fulgur | < 0.26.0 | 0.26.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-4rf6-qx84-q9fv
- https://github.com/fulgur-rs/fulgur/security/advisories/GHSA-4rf6-qx84-q9fv
- https://github.com/fulgur-rs/fulgur/pull/575
- https://rustsec.org/advisories/RUSTSEC-2026-0201.html
- https://github.com/fulgur-rs/fulgur/pull/501
- https://rustsec.org/advisories/RUSTSEC-2026-0200.html