MEDIUMMaven →
Apache HttpComponents Client: Connection Leak on Content-Encoding Decode Error Leads to Pool Exhaustion DoS
Apache HttpComponents Client: Connection Leak on Content-Encoding Decode Error Leads to Pool Exhaustion DoS
Affected packages
- org.apache.httpcomponents.client5:httpclient5— 5.0-alpha1 → 5.6.3
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-64607
- https://github.com/apache/httpcomponents-client/commit/55733f4121f7ba26ddf04fe12739d9c15962cb94
- https://github.com/apache/httpcomponents-client/commit/ebac9512f555c4a355cad3f59ef2db69b597cc97
- https://github.com/apache/httpcomponents-client
- https://github.com/apache/httpcomponents-client/releases/tag/rel/v5.6.3
- https://github.com/apache/httpcomponents-client/releases/tag/rel/v5.7-alpha1
- https://lists.apache.org/thread/qqfzo3fqcdk4l5496vz95ppvl4ty511q
- http://www.openwall.com/lists/oss-security/2026/08/13/5
Structured record: https://osv.dev/vulnerability/GHSA-hjcp-jmpx-g3qm
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