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Medium severity6.1NVD Advisory· Published May 7, 2026· Updated May 13, 2026

CVE-2026-39823

CVE-2026-39823

Description

CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a tag's attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the attribute, the escaper would fail to similarly escape it, leading to XSS.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3394

Patches

Vulnerability mechanics

References

4

News mentions

1