PT-2026-29303 · Discourse · Discourse

Davidtaylorhq · Published 2026-03-31 · Updated 2026-04-07 · CVE-2026-32113

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Discourse versions 2026.1.0 through 2026.1.2, 2026.2.0 through 2026.2.1, and 2026.3.0

Description The StaticController's enter action does not validate the sso destination url cookie before redirecting to it with allow other host: true. This cookie, normally set during legitimate DiscourseConnect Provider flows, is client-controlled and can be manipulated by attackers.

Recommendations Update to Discourse version 2026.1.3 or later. Update to Discourse version 2026.2.2 or later. Update to Discourse version 2026.3.0 or later.

Exploit

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

BIT-DISCOURSE-2026-32113

CVE-2026-32113

GHSA-378J-CCW4-4FWH

Affected Products

Discourse

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32113.json · Exploit
• 🔥 https://meta.discourse.org/t/use-discourse-as-an-identity-provider-sso-discourseconnect/32974 · Exploit
• https://github.com/discourse/discourse/security/advisories/GHSA-378j-ccw4-4fwh · Vendor Advisory
• https://github.com/discourse/discourse/commit/080408b93d00305b51d71f63f755f43fa601884d · Patch
• https://osv.dev/vulnerability/CVE-2026-32113 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-discourse-2026-32113 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-32113 · Security Note
• https://meta.discourse.org/t/using-discourse-as-a-sso-provider/32974 · Note