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CVE-2026-33185

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, the group email settings test endpoint could be used to make the server initiate outbound connections to arbitrary hosts and ports. This could allow probing of internal network infrastructure. The endpoint was accessible to non-staff group owners. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:68bd368985e6402978e92f65f504fc097cd727b5b7986731a752ea53a178f090
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":">= 2026.1.0-latest, < 2026.1.3"},{"status":"affected","version":">= 2026.2.0-latest, < 2026.2.2"},{"status":"affected","version":">= 2026.3.0-latest, < 2026.3.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:98c5b943dd53b4708d27222dcc1a34cbf17646164d4fbff204d99d265a3c21e0 · sha256:05cac6f80b2ccb75… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/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:v2:98c5b943dd53b4708d27222dcc1a34cbf17646164d4fbff204d99d265a3c21e0 · sha256:05cac6f80b2ccb75… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:98c5b943dd53b4708d27222dcc1a34cbf17646164d4fbff204d99d265a3c21e0 · sha256:05cac6f80b2ccb75… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/discourse/discourse/commit/e75cf456e8e318290c569bd6e8fa0f2586ffc530","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/e75cf456e8e318290c569bd6e8fa0f2586ffc530"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:98c5b943dd53b4708d27222dcc1a34cbf17646164d4fbff204d99d265a3c21e0 · sha256:05cac6f80b2ccb75… · /containers/cna/references/1
{"name":"https://github.com/discourse/discourse/security/advisories/GHSA-5976-77mj-m4h3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/discourse/discourse/security/advisories/GHSA-5976-77mj-m4h3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:98c5b943dd53b4708d27222dcc1a34cbf17646164d4fbff204d99d265a3c21e0 · sha256:05cac6f80b2ccb75… · /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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