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CVE-2026-68539

fulgur: Unbounded string-set value accumulation causes memory/CPU exhaustion (denial of service)

fulgur converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. From version 0.4.4 to before version 0.29.0, the CSS string-set named-string values resolved from a document were accumulated per element with no memory budget, letting a small crafted document amplify into large retained memory (and the CPU to copy it) — results in a denial of service. This issue has been patched in version 0.29.0.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Fulgur-rs
Products
Fulgur
CVE-2026-68538

fulgur: Unbounded counters() expansion in generated content causes memory/CPU exhaustion (denial of service)

fulgur converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. From version 0.15.0 to before version 0.27.0, resolving the CSS counters(name, sep) function in generated content was bounded neither in the size of a single expansion nor in the aggregate work across an element tree. An attacker able to submit HTML/CSS to a fulgur-based conversion service can trigger CPU and memory exhaustion with a trivially small payload, denying service to the host and any co-tenants. This issue has been patched in version 0.27.0.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Fulgur-rs
Products
Fulgur
CVE-2026-68540

fulgur: Quadratic style-list reprocessing during containing-block resolution for absolutely-positioned pseudo-elements causes denial of servicefulgur:

fulgur converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. From version 0.6.0 to before version 0.33.0, quadratic style-list reprocessing during containing-block resolution for absolutely-positioned pseudo-elements cause denial of service. This issue has been patched in version 0.33.0.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Fulgur-rs
Products
Fulgur
CVE-2026-68523

Fulgur: Unbounded page slicing from attacker-controlled CSS height causes denial of service

`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 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.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Fulgur-rs
Products
Fulgur
CVE-2026-68537

Fulgur: Unbounded page slicing from attacker-controlled CSS height causes denial of service

`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.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Fulgur-rs
Products
Fulgur