CVE-2026-91928Apache Sling XSS: Sanitizer bypass, uncontrolled resource consumption and failure pf protection mechanisms
Updated under an hour ago ()
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It affects Apache Software Foundation Apache Sling XSS and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which fixes the issue.
- CVSS
- 6.1 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- apache
- NVD analysis
- Analyzed
- Record last updated
- Sep 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apache Software Foundation Apache Sling XSS apache_software_foundation:apache_sling_xss (from the name) | before 2.4.12 | CNA record |
apache sling_xss_protection_api apache:sling_xss_protection_api | before 2.4.12 | NVD |
References
- https://lists.apache.org/thread/yfb1q6zob8mth5lr4jnsy3lhx9rfwb02vendor-advisory, mailing-list
- http://www.openwall.com/lists/oss-security/2026/09/23/13mailing-list, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.