Fedora 45 OCaml XML Light Critical Bugs Fix Advisory 2026

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Xml-Light is a minimal XML parser & printer for OCaml. It provides

functions to parse an XML document into an OCaml data structure, work

with it, and print it back to an XML document. It also supports DTD

parsing and checking, and is entirely written in OCaml; hence it does

not require a C library.

This is a mass rebuild of the OCaml ecosystem with OCaml 5.5.1, which fixes two security bugs. See for details. In addition, rocq has been updated to version 9.3.0, which also fixes several CVEs. New upstream development version 1.61.4 New upstream development version 2.13.7

* Tue Sep 15 2026 Richard W.M. Jones - 2.5-22 - OCaml 5.5.1 rebuild

* Tue Sep 15 2026 Richard W.M. Jones - 2.5-22 - OCaml 5.5.1 rebuild

[ 1 ] Bug #2443780 - CVE-2026-28364 ocaml: OCaml: Remote code execution via buffer over-read in Marshal deserialization [fedora-all] [ 2 ] Bug #2520289 - rocq-stdlib-9.2.0 is available [ 3 ] Bug #2523138 - CVE-2020-37268 rocq: Coq and Rocq Provers: Logical inconsistency bypass via Print Assumptions omission [fedora-all] [ 4 ] Bug #2523145 - CVE-2026-72703 rocq: Rocq Prover: Logical Flaw Allows Arbitrary Proof Generation via Unchecked Cross-Calls [fedora-all] [ 5 ] Bug #2523146 - CVE-2026-72705 rocq: Rocq Prover: Logical inconsistency via untracked higher-order fixpoint arguments [fedora-all] [ 6 ] Bug #2523147 - CVE-2026-72714 rocq: Rocq Prover: Critical integrity by...

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-403bcf6fd8' at the command line. For more information, refer to the dnf documentation available at

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