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Fencer Vulns
high 7.6

CVE-2025-68662 json

FinalDestination hostname matching allows SSRF protection bypass

published 2026-01-28 9 mo ago modified 2026-09-08 2 mo ago also BIT-discourse-2025-68662 , EUVD-2025-206421 , GHSA-gcfp-rjfc-925c

cvss
7.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits
0
none known

Summary

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, a hostname validation issue in FinalDestination could allow bypassing SSRF protections under certain conditions. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. No known workarounds are available.

Patch / fix

  • bitnami discourse 3.5.4, 2025.11.2, 2025.12.1, 2026.1.0
  • discourse discourse 3.5.4, 2025.11.2, 2025.12.1, 2026.1.0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
NVD 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
OSV 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
bitnami discourse
<3.5.4
>=2025.11.0, <2025.11.2
>=2025.12.0, <2025.12.1
>=2026.1.0, <2026.1.0
3.5.4
2025.11.2
2025.12.1
2026.1.0

Affected products

  • discourse discourse

Classification

Weakness
  • CWE-918 Server-Side Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.