CVE-2026-53530: CWE-248: Uncaught Exception in erweixin RaTeX
RaTeX, a Rust-based KaTeX-compatible math rendering engine, has a vulnerability prior to version 0.1.11 where its parser panics on specific malformed input containing a multibyte UTF-8 delimiter in the \verb command. This panic causes the entire process to abort, resulting in a denial of service. The issue is fixed in version 0.1.11.
AI Analysis
Technical Summary
RaTeX versions before 0.1.11 have a vulnerability in the public parser entrypoint `ratex_parser::parse(&str)` where processing the 9-byte input `\verbéxé` triggers a panic due to slicing a multibyte UTF-8 character with invalid byte indices. Because the panic aborts the entire process (panic = "abort"), this leads to a hard denial of service for any service rendering untrusted LaTeX. Version 0.1.11 addresses this issue.
Potential Impact
An attacker can cause a denial of service by submitting crafted LaTeX input containing a \verb command with a multibyte UTF-8 delimiter, causing the RaTeX parser to panic and abort the entire process. This disrupts availability of services relying on RaTeX for math rendering.
Mitigation Recommendations
Upgrade RaTeX to version 0.1.11 or later, where the panic on malformed \verb input with multibyte delimiters is fixed. No other mitigation is required.
CVE-2026-53530: CWE-248: Uncaught Exception in erweixin RaTeX
Description
RaTeX, a Rust-based KaTeX-compatible math rendering engine, has a vulnerability prior to version 0.1.11 where its parser panics on specific malformed input containing a multibyte UTF-8 delimiter in the \verb command. This panic causes the entire process to abort, resulting in a denial of service. The issue is fixed in version 0.1.11.
CVSS v4.0
Score 8.7high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
RaTeX versions before 0.1.11 have a vulnerability in the public parser entrypoint `ratex_parser::parse(&str)` where processing the 9-byte input `\verbéxé` triggers a panic due to slicing a multibyte UTF-8 character with invalid byte indices. Because the panic aborts the entire process (panic = "abort"), this leads to a hard denial of service for any service rendering untrusted LaTeX. Version 0.1.11 addresses this issue.
Potential Impact
An attacker can cause a denial of service by submitting crafted LaTeX input containing a \verb command with a multibyte UTF-8 delimiter, causing the RaTeX parser to panic and abort the entire process. This disrupts availability of services relying on RaTeX for math rendering.
Mitigation Recommendations
Upgrade RaTeX to version 0.1.11 or later, where the panic on malformed \verb input with multibyte delimiters is fixed. No other mitigation is required.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-4hgp-59h5-gvrj
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-53530"]
- Ecosystems
- ["crates.io"]
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
Threat ID: 6a4e4ee9c9d9e3dbe3289c7a
Added to database: 07/08/2026, 13:21:45 UTC
Last enriched: 09/12/2026, 20:01:27 UTC
Last updated: 09/14/2026, 22:01:35 UTC
Views: 157
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