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  4. CVE 2026 92973 ansi2html 170a0 through 193 cross site scripting
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Back to active CVEs
Medium · CVSS 5.3CVE-2026-92973

ansi2html 1.7.0a0 through 1.9.3 Cross-Site Scripting via OSC 8CVE-2026-92973

Answer in brief

CVE-2026-92973 records a Medium severity (CVSS 5.3) vulnerability in ansi2html 1.7.0a0 through 1.9.3 Cross-Site Scripting via OSC 8. The current sources do not mark it as known exploited. The current feed maps pycontribs/ansi2html (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 17, 2026Updated Sep 23, 2026Source checked Nov 1, 2026First seen by HOL Sep 17, 2026Material review Sep 23, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps pycontribs/ansi2html (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
pycontribs/ansi2htmlgeneric>=1.7.0a0 <1.9.41.9.4

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for pycontribs/ansi2html.
  2. 2Review the reported fix. Update pycontribs/ansi2html to 1.9.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 17, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 23, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 17, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

ansi2html versions 1.7.0a0 through 1.9.3 contain a cross-site scripting vulnerability in OSC 8 hyperlink handling that fails to validate or escape URL targets. Attackers controlling ANSI text input can inject javascript: schemes or terminate href attributes to execute arbitrary scripts in the context of pages displaying converted output.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Gitea stored XSS through legacy Actions artifact Content-EncodingAlso CWE-79
  • WordPress WordPress File Upload plugin <= 5.2.1 - Cross Site Scripting (XSS) vulnerabilityAlso CWE-79

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Nov 1, 2026
References
4 linked sources
Open source record