{"cve":"CVE-2026-53530","nvd":{"published":"2026-08-21T22:16:39.590","modified":"2026-10-12T16:10:00.220","status":"Deferred","description":"RaTeX is a KaTeX-compatible math rendering engine written in Rust. Prior to version 0.1.11, the public parser entrypoint `ratex_parser::parse(&str)` panics on the 9-byte input `\\verbéxé` (i.e. `\\verb` followed by the non-ASCII delimiter `é`). When handling a `\\verb` command, the parser slices the verbatim argument with byte indices (`arg[1..arg.len() - 1]`); if the delimiter character is multibyte UTF-8, index `1` lands inside that character and Rust panics with *“byte index 1 is not a char boundary”*. Because RaTeX’s release profile sets `panic = \"abort\"` (`Cargo.toml:48`), the panic aborts the entire process — not just the current request/thread — making this a hard denial of service for any service that renders untrusted LaTeX. Version 0.1.11 fixes the issue.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":null,"cwes":["CWE-248","CWE-400","CWE-1285"],"references":["https://github.com/erweixin/RaTeX/security/advisories/GHSA-4hgp-59h5-gvrj","https://github.com/erweixin/RaTeX/security/advisories/GHSA-4hgp-59h5-gvrj"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:38.260478770+00:00"},"epss":{"cve":"CVE-2026-53530","score":0.00428,"percentile":0.36764,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-4hgp-59h5-gvrj","url":"https://osv.dev/vulnerability/GHSA-4hgp-59h5-gvrj","summary":"ratex-parser panics on `\\verb` with a multibyte delimiter (UTF-8 byte-boundary slice)","modified":"2026-07-07T23:56:32.324787Z","packages":[{"ecosystem":"crates.io","name":"ratex-parser","purl":"pkg:cargo/ratex-parser","ranges":["<0.1.11"],"fixed":["0.1.11"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}