Medium severity · published Aug 24, 2026
CVE-2026-59295
Micrometer instrumentation of Apache HttpAsyncClient DoS vulnerability
5.9
CVSS
0.4%
EPSS
No
On KEV
Description
It is possible for outbound HTTP requests using a Micrometer-instrumented client to cause a denial-of-service (DoS) condition due to an unbounded memory leak.
Micrometer 1.17.0
Micrometer 1.16.0 - 1.16.6
Micrometer 1.15.0 - 1.15.12
Micrometer 1.14.0 - 1.14.16
Micrometer 1.9.18 and earlier
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MI
Micrometer · Spring
1.17.0; 1.16.0 through 1.16.6; 1.15.0 through 1.15.12; 1.14.0 through 1.14.16; through 1.9.18 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-59295
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-59295
spring.io
https://spring.io/security/cve-2026-59295
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