CVE-2026-32600 is a high-severity vulnerability in the xml-security library, affecting versions prior to 2.3.1 and 1.13.9, including simplesamlphp xml_security. It stems from a lack of authentication tag length validation for XML nodes encrypted with AES-GCM. With a CVSS score of 8.2, this vulnerability allows an unauthenticated network attacker to brute-force authentication tags, recover encryption keys, decrypt sensitive XML nodes, and forge arbitrary ciphertexts. While not currently listed on the KEV catalog as actively exploited, it is on the "Hot List: Active," indicating elevated concern. There are no public exploit modules available, though the vulnerability has garnered some community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.13.9CPE matchmatch criteria | cpe:2.3:a:simplesamlphp:xml-security:*:*:*:*:*:*:*:* | ||
>= 2.0.0, < 2.3.1CPE matchmatch criteria | cpe:2.3:a:simplesamlphp:xml-security:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.