VulnSocial

CVE-2026-26979Disclosure(discourse / discourse)

LOWCVSS 2.7 · LOW

Signal is active with 2 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. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, TL4 users are able to close, archive and pin topics in private categories they don't have access to. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

discourse CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-862

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

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

  • discourse

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 3 classified signals
  • Peaked at 2 mentions on most recent observed day (2026-02-27)
  • 3 total mentions across 2 days

Affected systems

Vendors
discourse
Products
discourse

1 version affected across 1 product

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-02-26: 1Mentions · 2026-02-27: 2Technical Details · 2026-02-27: 202-2602-27
Signal classification1 categories
Disclosure
3100.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-02-261
Disclosure1
2026-02-272
Disclosure2
Full discourse3 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-26979 Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, TL4 users are able to close, archive and pin topics in private c… https://www.cve.org/CVERecord?id=CVE-2026-26979 ----- Traducción: CVE-2026-26979 Dis… http://infoflow.cloud`

    Post summary

    CVE-2026-26979 is a privilege‑escalation vulnerability in Discourse that allows TL4 users to close, archive, and pin private topics in older versions; no PoC, exploit, or patch is referenced.

    0000041
    55 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-26979 Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, TL4 users are able to close, archive and pin topics in private c… https://www.cve.org/CVERecord?id=CVE-2026-26979

    Post summary

    Discourse allows TL4 users to close, archive, and pin private topics in older versions, as disclosed in CVE-2026-26979.

    00000189
    56.6K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-26979 Discourse Unauthorized Topic Manipulation in Private Categories B... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-26979 Vulnerability Alert Subscriptions: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=1

    Post summary

    The post links to a vulnerability alert for CVE-2026-26979 but offers no additional details, evidence of exploitation, or mitigation information.

    0000041
    4.0K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appdiscoursediscourse---
Appdiscoursediscourse2026.2.0--

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