Quick answers
- Is CVE-2026-40853 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-40853 being exploited in the wild.
- How severe is CVE-2026-40853?
- Informational severity, published 11 November 2026.
- Which products and versions are affected?
- Apache XML Graphics Batik through 1.19.
- Is there a fix for CVE-2026-40853?
- Yes: fixed in 1.20. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-40853 attacked?
- It is attacked from the adjacent network, in a software library.
- Am I affected by CVE-2026-40853?
- Check whether you run Apache XML Graphics Batik at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 1.20
Technical details
A cross-site scripting (XSS) vulnerability exists in Apache Batik's SVGFont processing due to insufficient encoding of font metadata. An attacker can craft a malicious SVG file containing unencoded script payloads in font metadata that will be executed when the file is processed. The vulnerability requires the victim to open or process a malicious SVG file, but does not require authentication or special network conditions.
Affected products
- Apache XML Graphics Batik through 1.19
Timeline
- 2026-11-11: disclosed