{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53530", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-09T17:30:33.457Z", "datePublished": "2026-08-21T21:31:12.665Z", "dateUpdated": "2026-08-24T20:05:00.628Z"}, "containers": {"cna": {"title": "ratex-parser panics on `\\verb` with a multibyte delimiter (UTF-8 byte-boundary slice)", "problemTypes": [{"descriptions": [{"cweId": "CWE-248", "lang": "en", "description": "CWE-248: Uncaught Exception", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-1285", "lang": "en", "description": "CWE-1285: Improper Validation of Specified Index, Position, or Offset in Input", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "vectorString": "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", "version": "4.0"}}], "references": [{"name": "https://github.com/erweixin/RaTeX/security/advisories/GHSA-4hgp-59h5-gvrj", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/erweixin/RaTeX/security/advisories/GHSA-4hgp-59h5-gvrj"}], "affected": [{"vendor": "erweixin", "product": "RaTeX", "versions": [{"version": "< 0.1.11", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-21T21:31:12.665Z"}, "descriptions": [{"lang": "en", "value": "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 `\\verb\u00e9x\u00e9` (i.e. `\\verb` followed by the non-ASCII delimiter `\u00e9`). 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 *\u201cbyte index 1 is not a char boundary\u201d*. Because RaTeX\u2019s release profile sets `panic = \"abort\"` (`Cargo.toml:48`), the panic aborts the entire process \u2014 not just the current request/thread \u2014 making this a hard denial of service for any service that renders untrusted LaTeX. Version 0.1.11 fixes the issue."}], "source": {"advisory": "GHSA-4hgp-59h5-gvrj", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/erweixin/RaTeX/security/advisories/GHSA-4hgp-59h5-gvrj", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-24T20:04:54.916424Z", "id": "CVE-2026-53530", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-24T20:05:00.628Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.1.11)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "RaTeX", "source": "cna", "vendor": "erweixin"}, "product": "ratex", "vendor": "erweixin"}], "created": "2026-08-21T22:45:04.682224+00:00", "updated": "2026-08-23T16:40:22.801341+00:00", "vendors": ["erweixin", "erweixin$PRODUCT$ratex"]}