7.5

CVE-2026-54399: apache software foundation apache httpcomponents core Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-54399DEBIAN-CVE-2026-54399CGA-24g4-vfcc-r48q
Published 01-07-2026Last modified 01-07-2026

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.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.87%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1

Timeline

  1. 01-07-2026
    PublishedVulnerability first disclosed.
  2. 01-07-2026
    Last 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

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

19-09-202619-10-2026
EPSS score
0.87%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected 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
Apache software foundation1 product
Org.apache.httpcomponents.core51 product
  • httpcore5< 5.4.3 | ≥ 5.5-alpha1, < 5.5-beta2

7 vendors · 152 products

References

11 links
Show all 11 references