Shiori is vulnerable to authentication bypass via a brute force attack

published 2026-01-09 10 mo ago modified 2026-06-17 4 mo ago also GHSA-mw8h-g64c-rxv4 , GO-2026-4308 , EUVD-2026-1679

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits: 0; none known

A lack of rate limiting in the login page of shiori v1.7.4 and below allows attackers to bypass authentication via a brute force attack.

Patch / fix

distros 2

suse opensuse

govulncheck-vulndb openSUSE Leap 15.6 0.0.20260114T191543-150000.1.137.1

suse advisories SUSE-SU-2026:0142-1

govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1

opensuse advisories openSUSE-SU-2026:21483-1

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 9 mo ago (2026-01-09)

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
GitHub	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Affected packages

ecosystem	package	affected	fixed in
go	github.com/go-shiori/shiori	<=1.7.4 all versions	no fix listed

Classification

Weakness

CWE-290 Authentication Bypass by Spoofing

References

github.com /go-shiori/shiori
package, product
github.com /go-shiori/shiori/issues/1138
web, issue-tracking, report
nvd.nist.gov /vuln/detail/CVE-2025-60538
advisory
github.com /advisories/GHSA-mw8h-g64c-rxv4
advisory

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