CVE-2026-91146

Takahe through 0.11.0 fails to restrict URL schemes in link hrefs within federated post content and profile summaries, allowing remote actors to inject javascript: links. Attackers can deliver federated content with malicious javascript: hrefs that execute in the instance origin when clicked, enabling session hijacking or impersonation of viewers.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/jointakahe/takahe
https://github.com/jointakahe/takahe/blob/0.11.0/core/html.py
https://github.com/jointakahe/takahe/issues/728
https://www.vulncheck.com/advisories/takahe-through-0.11.0-cross-site-scripting-via-javascript-url-scheme

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 22:16

Updated : 2026-09-14 22:16

NVD link : CVE-2026-91146

Mitre link : CVE-2026-91146

CVE.ORG link : CVE-2026-91146

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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