CVE-2026-54399: apache software foundation apache httpcomponents core Uncontrolled Resource Consumption
Vulnerability summary
CVE-2026-54399 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in apache software foundation apache httpcomponents core. EPSS estimates a 0.87% chance of exploitation in the next 30 days, higher than 58.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 01-07-2026PublishedVulnerability first disclosed.
- 01-07-2026Last modifiedVulnerability information updated.
Description
Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive header length
CVSS metrics
7 scores · 7 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · MavenEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.87%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
0.00 pp
From 0.87% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard114 products
- airbyte-platform-bootloader< 2.0.0-r1
- airbyte-platform-cron< 2.0.0-r1
- airbyte-platform-fips-bootloader< 2.0.0-r1
- airbyte-platform-fips-cron< 2.0.0-r1
- airbyte-platform-fips-server< 2.0.0-r1
Wolfi31 products
- akhq< 0.28.0-r3
- apicurio-registry< 3.3.1-r4
- cassandra-reaper< 5.0.0-r6
- druid< 37.0.0-r49 | < 37.0.0-r56
- flyway< 13.7.0-r1
Debian2 products
- httpcomponents-coreAll versions (No fix recorded)
- httpcomponents-core5All versions (No fix recorded) | < 5.4.3-1
Ubuntu2 products
- httpcomponents-coreAll versions (No fix recorded)
- httpcomponents-core5All versions (No fix recorded)
Apache1 product
- httpcomponents_core≥ 5.0, ≤ 5.4.2 | 5.5:alpha1 | 5.5:beta1
Apache software foundation1 product
- apache httpcomponents core≥ 5.5-alpha, ≤ 5.5-beta1 | ≥ 5.0-alpha, ≤ 5.4.2
Org.apache.httpcomponents.core51 product
- httpcore5< 5.4.3 | ≥ 5.5-alpha1, < 5.5-beta2
7 vendors · 152 products
References
11 links- lists.apache.org/thread/zmxh1pl2zohov5ntdh4lt85gfrlchgpyVendor AdvisoryREPORTAdvisoryWEBMailing List