Vikunja before 2.7.1 Supply Chain Risk via Unpinned xgo Release Toolchain

published 2026-10-22 21d ago modified 2026-11-08 4d ago also EUVD-2026-119393 , GHSA-h8wj-3gwg-jjjg

Unreviewed: the maintainers' own advisory

Published by the maintainers on their GitHub repository go-vikunja/vikunja. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.

cvss: 3.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits: 0; none known

Vikunja before 2.7.1 contains a supply chain vulnerability in its mage release targets that fetch the xgo module and Docker image by mutable latest references. Attackers who compromise the upstream xgo module, image, or registry can inject malicious code into subsequently built release binaries shipped under a valid signature.

Patch / fix

fixed in 1

go-vikunja vikunja 2.7.1

Is CVE-2026-123508 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.09% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by	version	score	vector
CNA	4.0	2.0	CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CNA	3.1	3.1	CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
CNA	4.0	2.0	CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/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
NVD	3.1	3.1	CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N

Affected products

go-vikunja vikunja

Classification

Weakness

CWE-494 Download of Code Without Integrity Check

References

github.com /go-vikunja/vikunja/security/advisories/GHSA-h8wj-3gwg-jjjg
vendor-advisory, advisory
vulncheck.com /advisories/vikunja-before-2.7.1-supply-chain-risk-via-unpinned-xgo-release-toolchain
third-party-advisory

Sources

CVE List CVE-2026-123508
NVD CVE-2026-123508
Maintainer advisory GHSA-h8wj-3gwg-jjjg

Fencer Intel 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.

The maintainers of go-vikunja/vikunja published their own advisory on GitHub. Reviewed sources take precedence over it.