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CVE-2026-27149

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, SQL injection in PM tag filtering (`list_private_messages_tag`) allows bypassing tag filter conditions, potentially disclosing unauthorized private message metadata. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:73df33a647edd4d0e2a3ff73c8a5f009e05eaf00642c736b690bdd87dd30e638
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"discourse","vendor":"discourse","versions":[{"status":"affected","version":"< 2025.12.2"},{"status":"affected","version":">= 2026.1.0-latest, < 2026.1.1"},{"status":"affected","version":">= 2026.2.0-latest, < 2026.2.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b963290f807cb5f6228b33d0734b3bc109a8944df286906bff252a526cac8d89 · sha256:9f2b01fd1554e1ff… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":4.9,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b963290f807cb5f6228b33d0734b3bc109a8944df286906bff252a526cac8d89 · sha256:9f2b01fd1554e1ff… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-89","description":"CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b963290f807cb5f6228b33d0734b3bc109a8944df286906bff252a526cac8d89 · sha256:9f2b01fd1554e1ff… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/discourse/discourse/security/advisories/GHSA-m6qf-h49w-h38w","tags":["x_refsource_CONFIRM"],"url":"https://github.com/discourse/discourse/security/advisories/GHSA-m6qf-h49w-h38w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b963290f807cb5f6228b33d0734b3bc109a8944df286906bff252a526cac8d89 · sha256:9f2b01fd1554e1ff… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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