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    4 vulnerabilities by erweixin

    CVE-2026-53531 (GCVE-0-2026-53531)

    Vulnerability from nvd – Published: 2026-08-21 21:34 – Updated: 2026-08-21 21:34
    VLAI
    Title
    ratex-parser has unbounded parser recursion that leads to stack overflow (process abort)
    Summary
    RaTeX is a KaTeX-compatible math rendering engine written in Rust. Prior to version 0.1.11, RaTeX’s recursive-descent parser recurses one (or more) native stack frame per nesting level at `{`, `\left`, `\sqrt{`, `^{`, etc, with no maximum depth limit. A short, ~10 KB input of nested groups overflows the 8 MB main-thread stack and aborts the process. With `panic = "abort"` (`Cargo.toml:48`), and because a Rust stack overflow is always a fatal `SIGABRT` regardless of panic strategy this is an unrecoverable, whole-process denial of service reachable from a single untrusted LaTeX string. Version 0.1.11 fixes the issue.
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    • CWE-674 - Uncontrolled Recursion
    Assigner
    References
    Impacted products
    Vendor Product Version
    erweixin RaTeX Affected: < 0.1.11
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
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        }
      ],
      "metrics": [
        {
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      ],
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      },
      "title": "ratex-parser has unbounded parser recursion that leads to stack overflow (process abort)"
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    CVE-2026-53530 (GCVE-0-2026-53530)

    Vulnerability from nvd – Published: 2026-08-21 21:31 – Updated: 2026-08-24 20:05
    VLAI
    Title
    ratex-parser panics on `\verb` with a multibyte delimiter (UTF-8 byte-boundary slice)
    Summary
    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.
    Severity
    8.7 (High)
    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
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-24 20:04 UTC
    CWE
    • CWE-248 - Uncaught Exception
    • CWE-400 - Uncontrolled Resource Consumption
    • CWE-1285 - Improper Validation of Specified Index, Position, or Offset in Input
    Assigner
    References
    Impacted products
    Vendor Product Version
    erweixin RaTeX Affected: < 0.1.11
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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      "title": "ratex-parser panics on `\\verb` with a multibyte delimiter (UTF-8 byte-boundary slice)"
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    CVE-2026-53531 (GCVE-0-2026-53531)

    Vulnerability from cvelistv5 – Published: 2026-08-21 21:34 – Updated: 2026-08-21 21:34
    VLAI
    Title
    ratex-parser has unbounded parser recursion that leads to stack overflow (process abort)
    Summary
    RaTeX is a KaTeX-compatible math rendering engine written in Rust. Prior to version 0.1.11, RaTeX’s recursive-descent parser recurses one (or more) native stack frame per nesting level at `{`, `\left`, `\sqrt{`, `^{`, etc, with no maximum depth limit. A short, ~10 KB input of nested groups overflows the 8 MB main-thread stack and aborts the process. With `panic = "abort"` (`Cargo.toml:48`), and because a Rust stack overflow is always a fatal `SIGABRT` regardless of panic strategy this is an unrecoverable, whole-process denial of service reachable from a single untrusted LaTeX string. Version 0.1.11 fixes the issue.
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    • CWE-674 - Uncontrolled Recursion
    Assigner
    References
    Impacted products
    Vendor Product Version
    erweixin RaTeX Affected: < 0.1.11
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
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    "cna": {
      "affected": [
        {
          "product": "RaTeX",
          "vendor": "erweixin",
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    CVE-2026-53530 (GCVE-0-2026-53530)

    Vulnerability from cvelistv5 – Published: 2026-08-21 21:31 – Updated: 2026-08-24 20:05
    VLAI
    Title
    ratex-parser panics on `\verb` with a multibyte delimiter (UTF-8 byte-boundary slice)
    Summary
    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.
    Severity
    8.7 (High)
    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
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-24 20:04 UTC
    CWE
    • CWE-248 - Uncaught Exception
    • CWE-400 - Uncontrolled Resource Consumption
    • CWE-1285 - Improper Validation of Specified Index, Position, or Offset in Input
    Assigner
    References
    Impacted products
    Vendor Product Version
    erweixin RaTeX Affected: < 0.1.11
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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