CVE-2026-126954 json
Glance 0.7.9 before 0.8.8 Stored XSS via Widget-Title-URL Header
published 7d ago modified yesterday also EUVD-2026-125111 , GHSA-96x7-3hwp-rcfc , GHSA-f2c4-p935-ffpj
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository glanceapp/glance. 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
- 4.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
Glance from 0.7.9 before 0.8.8 contains a stored cross-site scripting vulnerability that allows malicious extension endpoints to inject javascript: URLs via the Widget-Title-URL response header. Attackers controlling an extension endpoint can execute script when users click the widget title, reading dashboard pages through same-origin requests and exfiltrating content.
Patch / fix
- glanceapp glance 0.8.8
Is CVE-2026-126954 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 FencerExploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-14).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.3 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N |
| CNA | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CNA | 4.0 | 2.3 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/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 | 4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- glanceapp glance
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/glanceapp/glance/commit/e19081cfa029edbe16b1354ffe03076a8cdf0244
patch
-
github.com
/glanceapp/glance/security/advisories/GHSA-96x7-3hwp-rcfc
vendor-advisory, advisory
-
github.com
/glanceapp/glance/security/advisories/GHSA-f2c4-p935-ffpj
vendor-advisory, advisory
-
github.com
/glanceapp/glance/blob/v0.8.7/internal/glance/widget-extension.go#L151-L152
technical-description
-
github.com
/glanceapp/glance/blob/v0.8.7/internal/glance/templates/widget-base.html#L5
technical-description
-
github.com
/glanceapp/glance/releases/tag/v0.8.8
release-notes
-
vulncheck.com
/advisories/glance-0.7.9-before-0.8.8-stored-xss-via-widget-title-url-header
third-party-advisory
Sources
- CVE List CVE-2026-126954
- NVD CVE-2026-126954
- Maintainer advisory GHSA-96x7-3hwp-rcfc
- Maintainer advisory GHSA-f2c4-p935-ffpj
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 glanceapp/glance published their own advisory on GitHub. Reviewed sources take precedence over it.