ansi2html 1.7.0a0 through 1.9.3 Cross-Site Scripting via OSC 8 (CVE-2026-92973) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-92973

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

Answer in brief

CVE-2026-92973 records a Unknown severity 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 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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
Package	Affected range	Fixed version
pycontribs/ansi2htmlgeneric	>=1.7.0a0 <1.9.4	1.9.4

Recommended response

Check inventory. Check lockfiles and deployed manifests for pycontribs/ansi2html.
Review 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

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

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.