CVE-2026-59828

MEDIUM

5.3

CVSS Severity Score

EPSS Score0.0000%

EPSS Percentile0.00th

Published2026-07-09

Last Modified2026-07-13

Data SourcesNVD

Vulnerability 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.

Affected Platforms (CPE)

No CPE configurations currently published for this record.

References & Advisories

🔗 https://github.com/discourse/discourse/commit/1f26c1163ce87a2abbd1d01780ab1b5fb16e75f6

🔗 https://github.com/discourse/discourse/commit/8b773332b0f937dfcd894ed56d56fc5a81578d9d

🔗 https://github.com/discourse/discourse/commit/8d36da1b68c906592abde3f2e94d505cdf097435

🔗 https://github.com/discourse/discourse/commit/d58988d46bb1019bfa8b8330ae81a1a134e08511

🔗 https://github.com/discourse/discourse/releases/tag/v2026.1.5

🔗 https://github.com/discourse/discourse/releases/tag/v2026.4.2

🔗 https://github.com/discourse/discourse/releases/tag/v2026.5.1

🔗 https://github.com/discourse/discourse/releases/tag/v2026.6.0

Vulnerability Description

Affected Platforms (CPE)

References & Advisories

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