Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-33425

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, unauthenticated users can determine whether a specific user is a member of a private group by observing changes in directory results when using the `exclude_groups` parameter. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, disable public access to the user directory via Admin → Settings → hide user profiles from public.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0115ab233b17dd8df7cde717e14bbe5cb600b76413b595bcef65810303057823
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:410a81ce3f6801c40a224bb9ff3a94452e7e768b009b2c338ec4ecc5785f54fa · sha256:52d4c30707ca4603… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-203","description":"CWE-203: Observable Discrepancy","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:410a81ce3f6801c40a224bb9ff3a94452e7e768b009b2c338ec4ecc5785f54fa · sha256:52d4c30707ca4603… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:410a81ce3f6801c40a224bb9ff3a94452e7e768b009b2c338ec4ecc5785f54fa · sha256:52d4c30707ca4603… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

1 source assertion
{"product":"discourse","vendor":"discourse","versions":[{"status":"affected","version":">= 2026.1.0-latest, < 2026.1.2"},{"status":"affected","version":">= 2026.2.0-latest, < 2026.2.1"},{"status":"affected","version":"= 2026.3.0-latest"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:410a81ce3f6801c40a224bb9ff3a94452e7e768b009b2c338ec4ecc5785f54fa · sha256:52d4c30707ca4603… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:410a81ce3f6801c40a224bb9ff3a94452e7e768b009b2c338ec4ecc5785f54fa · sha256:52d4c30707ca4603… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

3 source assertions
{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:410a81ce3f6801c40a224bb9ff3a94452e7e768b009b2c338ec4ecc5785f54fa · sha256:52d4c30707ca4603… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-203","description":"CWE-203: Observable Discrepancy","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:410a81ce3f6801c40a224bb9ff3a94452e7e768b009b2c338ec4ecc5785f54fa · sha256:52d4c30707ca4603… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:410a81ce3f6801c40a224bb9ff3a94452e7e768b009b2c338ec4ecc5785f54fa · sha256:52d4c30707ca4603… · /containers/cna/problemTypes/2/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/discourse/discourse/security/advisories/GHSA-r6rh-xvf5-r5f2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/discourse/discourse/security/advisories/GHSA-r6rh-xvf5-r5f2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:410a81ce3f6801c40a224bb9ff3a94452e7e768b009b2c338ec4ecc5785f54fa · sha256:52d4c30707ca4603… · /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.

← Back to CVE Explorer