Cross-site Scripting (XSS) Affecting istio-pilot-agent-1.28-compat package, versions <1.28.6-r2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-MINIMOSLATEST-ISTIOPILOTAGENT128COMPAT-16668518
- published14 May 2026
- disclosed7 May 2026
Introduced: 7 May 2026
NewCVE-2026-39823 (opens in a new tab)How to fix?
Upgrade Minimos:latest istio-pilot-agent-1.28-compat to version 1.28.6-r2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream istio-pilot-agent-1.28-compat package and not the istio-pilot-agent-1.28-compat package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a <meta> tag's <content> attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the <content> attribute, the escaper would fail to similarly escape it, leading to XSS.
References
- https://www.cve.org/CVERecord?id=CVE-2026-39823
- https://github.com/advisories/GHSA-2283-wf8c-rw8r
- https://osv.dev/vulnerability/MINI-ph2q-57jm-29xc
- https://osv.dev/vulnerability/CVE-2026-39823
- https://go.dev/cl/769920
- https://go.dev/issue/78913
- https://groups.google.com/g/golang-announce/c/qcCIEXso47M
- https://pkg.go.dev/vuln/GO-2026-4982