CVE-2026-110225

Shaarli through 0.16.9 SSRF via Thumbnail Retrieval update-thumbnail Route

5.1 Medium

Shaarli through 0.16.9 contains a server-side request forgery vulnerability that allows authenticated users to make the server request internal addresses by fetching bookmark thumbnails without private-address checks. Attackers can create bookmarks pointing to loopback, private, or cloud metadata addresses and trigger ThumbnailsController::ajaxUpdate or saving to send blind GET requests, with open_shaarli exposing this to any visitor.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.34%Unchanged since Oct 14, 2026

What each source reports

CVE List Score used 5.1

Shaarli through 0.16.9 SSRF via Thumbnail Retrieval update-thumbnail Route

Record: CVE-2026-110225
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-918
Updated: 2026-11-02

EUVDEUVD-2026-99010 5.1

Record: EUVD-2026-99010
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-w44p-6p6v-f82x 5.1

Shaarli through 0.16.9 contains a server-side request forgery vulnerability that allows...

Record: GHSA-w44p-6p6v-f82x
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-918
Updated: 2026-11-02

NVD 5.1

Record: CVE-2026-110225
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-918
Updated: 2026-11-02

OSV 5.1

Shaarli through 0.16.9 SSRF via Thumbnail Retrieval update-thumbnail Route

Record: CVE-2026-110225
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-918
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-110225 5.1

Record: DEBIAN-CVE-2026-110225
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-110225 5.1

Record: UBUNTU-CVE-2026-110225
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

Affected products

shaarli

Affected packages

Affected packages
Package	Affected	Fixed
`shaarli` Debian:12	All versions, plus listed versions 0.12.1+dfsg-80.12.1+dfsg-8+deb12u10.12.1+dfsg-8+deb12u20.13.0+dfsg-10.13.0+dfsg-2 Show 7 moreShow less 0.13.0+dfsg-30.13.0+dfsg-40.13.0+dfsg-50.14.0+dfsg-10.14.0+dfsg-20.15.0+dfsg-10.16.1+dfsg-1	None known
`shaarli` Debian:13	All versions, plus listed versions 0.14.0+dfsg-10.14.0+dfsg-20.14.0+dfsg-2+deb13u10.15.0+dfsg-10.16.1+dfsg-1	None known
`shaarli` Ubuntu:16.04:LTS	All versions, plus listed versions 0.0.42~beta~dfsg1-20.0.42~beta~dfsg1-2ubuntu1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-110225 is a medium vulnerability (CVSS 5.1) in Shaarli, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.34%, the 27th percentile. No source names a fixed version.

References

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