CVE-2026-59828Disclosure(discourse / discourse)

LOWCVSS 5.3 · MEDIUM

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 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, post revisions that should be hidden from regular users could be leaked through visible diffs on adjacent revisions serialized by PostRevisionSerializer. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-200

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

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

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
Products
discourse

1 version affected across 1 product

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-10: 2Technical Details · 2026-07-10: 207-10
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-59828 Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, post revisions that should be hidden from regular users could be… https://www.cve.org/CVERecord?id=CVE-2026-59828 ----- Traducción: CVE-2026-59828 Dis… http://infoflow.cloud`

    Post summary

    The tweet announces CVE‑2026‑59828, noting that undisclosed post revisions could be exposed in older Discourse versions, with a link to the CVE record but no exploit or mitigation details.

    0000047
    91 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-59828 Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, post revisions that should be hidden from regular users could be… https://www.cve.org/CVERecord?id=CVE-2026-59828

    Post summary

    The post announces CVE-2026-59828, noting that it allows hidden post revisions to be accessed before certain Discourse versions. No PoC, exploit, patch, or active exploitation details are provided.

    00000625
    57.8K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appdiscoursediscourse---
Appdiscoursediscourse2026.6.0--

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