6.8

CVE-2026-107228: asynchttpclient async-http-client Improper Authentication

CVSS: 6.8v3.1MediumAwaiting analysis
AliasesUBUNTU-CVE-2026-107228DEBIAN-CVE-2026-107228CGA-583w-c99g-hr6q
Published 07-10-2026Last modified 08-10-2026
Open JSON

Vulnerability summary

CVE-2026-107228 is a medium (CVSS 6.8) Improper Authentication vulnerability in asynchttpclient async-http-client. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.4% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.30%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-10-2026
    PublishedVulnerability first disclosed.
  2. 08-10-2026
    Last modifiedVulnerability information updated.

Description

The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.1.0 until 3.0.14, the enabled-by-default cookie store replaces a Cookie header explicitly supplied through setHeader or addHeader whenever the store contributes any cookie for the origin. In a shared client, stored cookies originating from one user can replace a different user's request cookie, causing the request to execute under the wrong session. This bypasses the earlier CVE-2024-53990 remediation, which covered cookies supplied through addCookie but not a directly supplied header. This issue is fixed in version 3.0.14.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

08-10-202620-10-2026
EPSS score
0.30%

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

Chainguard8 products
  • apache-pulsar-4.0All versions (No fix recorded)
  • apache-pulsar-4.2All versions (No fix recorded)
  • apache-pulsar-fips-4.0All versions (No fix recorded)
  • apache-pulsar-fips-4.2All versions (No fix recorded)
  • druid< 38.0.0-r4
Wolfi3 products
  • apache-pulsar-4.2All versions (No fix recorded)
  • druid< 38.0.0-r4
  • tezAll versions (No fix recorded)
Asynchttpclient1 product
Debian1 product
  • async-http-clientAll versions (No fix recorded)
Org.asynchttpclient1 product
  • async-http-client≥ 3.0.0, < 3.0.14 | ≥ 2.1.0, ≤ 2.16.1
Ubuntu1 product
  • async-http-clientAll versions (No fix recorded)

6 vendors · 15 products

References

9 links