CVE-2026-22748: Spring Security · Improper Input Validation
Affects Spring SecuritySource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 22 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SpringSpring Security | Affected
| Fixed in– |
Mavenorg.springframework.security/spring-security-corepkg:maven/org.springframework.security/spring-security-coreOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until an official fix is available, ensure that applications explicitly configure an OAuth2TokenValidator<Jwt> when using NimbusJwtDecoder or NimbusReactiveJwtDecoder to enforce proper JWT validation. Review application configurations to verify that setJwtValidator or equivalent validation mechanisms are properly implemented.
Description
CVE-2026-22748 is a medium severity vulnerability in Spring Security affecting versions 6.3.0 through 6.3.14, 6.4.0 through 6.4.14, 6.5.