CVE-2026-41851: Spring Framework · Unthrottled Resource Allocation
Affects Spring FrameworkSource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium · fixed in 7.0.7.1 : update Spring Framework when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7.0.7.1, 6.2.18.1, 6.1.28 +1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LExploitation evidence
Disclosed: evidence found.
CVE published 9 Jun 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 30 Oct 2026.
What to do
Upgrade Spring Framework to 7.0.7.1, 6.2.18.1, 6.1.28 or 5.3.49.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SpringSpring Framework | Affected
| Fixed in
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| SpringSpring Framework | Affected
| Fixed in
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| SpringSpring Framework | Affected
| Fixed in
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| SpringSpring Framework | Affected
| Fixed in
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AI-suggested
If you cannot patch yet, avoid accepting or evaluating untrusted user-supplied SpEL expressions to mitigate risk.
Description
Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.