What is CVE-2026-92973?

CVE-2026-92973 is a medium-severity vulnerability in Pycontribs Ansi2html, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-09-17.

How severe is CVE-2026-92973?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Pycontribs Ansi2html

CVE-2026-92973

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.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Pycontribs Ansi2html

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-92973?: CVE-2026-92973 is a medium-severity vulnerability in Pycontribs Ansi2html, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-09-17.
How severe is CVE-2026-92973?: Medium severity. CVSS v3 base score is 6.1 out of 10.