CVE-2026-92973NVD

Vulnerability Summary

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.

Severity Level

MEDIUM(6.1)

Published Date

Sep 17, 2026

Last Modified

Sep 17, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.23%Probability

Root Weakness (CWE)

CWE-79: Cross-site Scripting (XSS) ↗

The software does not neutralize user-controllable input before it is placed in output that is used as a web page.

CVSS v4.0 Base Metrics — Score 5.3 (MEDIUM)

Attack VectorNetwork

Attack ComplexityLow

Attack RequirementsNone

Privileges RequiredNone

User InteractionPassive

Confidentiality (Vulnerable System)Low

Integrity (Vulnerable System)Low

Availability (Vulnerable System)None

Confidentiality (Subsequent System)Low

Integrity (Subsequent System)Low

Availability (Subsequent System)None

CVSS v3.1 Base Metrics — Score 6.1 (MEDIUM)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

ConfidentialityLow

IntegrityLow

AvailabilityNone

Affected & Patched Versions

Affected Versions

pycontribs ansi2html >= 1.7.0a0 and < 1.9.4

Patched Versions

pycontribs ansi2html 1.9.4

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