Server side request forgery in gibbon

published 2022-04-25 4 y ago modified 2026-06-17 4 mo ago also GHSA-vx9g-377x-xwxq , EUVD-2022-1847

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.6%; EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits: 0; none known

Gibbon v3.4.4 and below allows attackers to execute a Server-Side Request Forgery (SSRF) via a crafted URL.

Patch / fix

fixed in 2 links 3

rubygems gibbon 3.4.4
gibbon_project gibbon 3.4.4

Exploit prediction

1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
rubygems	gibbon	<3.4.4	3.4.4

Classification

Weakness

CWE-918 Server-Side Request Forgery

References

github.com /amro/gibbon/pull/321
web, issue-tracking, patch, third-party-advisory
github.com /amro/gibbon/commit/b2eb99ed304d7491a6d348a5bbdc83a008fc6e0b
web, patch, third-party-advisory
github.com /amro/gibbon/commit/cade20ca2438cd1b182dad70cbb77fb895779d10
web, patch, third-party-advisory
github.com /amro/gibbon/pull/321#issuecomment-1113147155
web
nvd.nist.gov /vuln/detail/CVE-2022-27311
advisory
github.com /amro/gibbon
package
github.com /rubysec/ruby-advisory-db/blob/master/gems/gibbon/CVE-2022-27311.yml
web

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.

Summary