CVE-2026-92973

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

MEDIUM
6.1
CVSS Score
Published: September 17, 2026 at 01:43 PM UTC
Updated: September 23, 2026 at 05:30 PM UTC
2 products affected across 2 vendorsANSI2HTMLANSI2HTML

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1.7.0a0 ≤ v < 1.9.4
Affected range stops below 1.9.4, so it looks safe — our inference, not a vendor statement
1.7.0a0 ≤ v < 1.9.41.7.0a0
Affected range stops below 1.9.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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