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CVE

CVE-2026-33012

Micronaut Framework vulnerable to a Denial of Service in HTML error response caching
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CVE

CVE-2026-33012

Micronaut Framework vulnerable to a Denial of Service in HTML error response caching

DefaultHtmlErrorResponseBodyProvider in io.micronaut:micronaut-http-server since 4.7.0 and until 4.10.7 used an unbounded ConcurrentHashMap cache with no eviction policy. If the application throws an exception whose message may be influenced by an attacker, for example, including request query value parameters,  this could be used by remote attackers

to cause a denial of service (unbounded heap growth and OutOfMemoryError). 

Fixed via: https://github.com/micronaut-projects/micronaut-core/commit/1e2ba2c14386af3d47751732d02053a72b0b49b3

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Related Resources

No items found.

References

https://github.com/micronaut-projects/micronaut-core/security/advisories/GHSA-2hcp-gjrf-7fhc, https://nvd.nist.gov/vuln/detail/CVE-2026-33012, https://github.com/micronaut-projects/micronaut-core/commit/1e2ba2c14386af3d47751732d02053a72b0b49b3, https://github.com/micronaut-projects/micronaut-core, https://github.com/micronaut-projects/micronaut-core/releases/tag/v4.10.17

Severity

7.5

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.5
EPSS Probability
0.00053%
EPSS Percentile
0.16729%
Introduced Version
4.7.0,5.0.0-M1
Fix Available
4.10.17,5.0.0-M16

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