CVE-2025-68659Disclosure(discourse / discourse)

LOWCVSS 5.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Discourse is an open source discussion platform. Versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 have an application level denial of service vulnerabilityin the username change functionality at try.discourse.org. The vulnerability allows attackers to cause noticeable server delays and resource exhaustion by sending large JSON payloads to the username preference endpoint PUT /u//preferences/username, resulting in degraded performance for other users and endpoints. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. No known workarounds are available.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • discourse

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
discourse

2 versions affected across 1 product

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-01-28: 1Technical Details · 2026-01-28: 101-28
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • CVE@CVEnew
    Disclosure

    CVE-2025-68659 Discourse is an open source discussion platform. Versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 have an application level denial of service vulnerability… https://www.cve.org/CVERecord?id=CVE-2025-68659

    Post summary

    The text announces a denial‑of‑service vulnerability affecting older Discourse versions, with no PoC, exploit, or patch information provided.

    00000154
    56.5K followersView on X
CPE platform detail3 entries

3 of 3 entries

PartVendorProductVersionTarget SWTarget HW
Appdiscoursediscourse---
Appdiscoursediscourse2025.12.0--
Appdiscoursediscourse2026.1.0--

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