The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.16.0 until 3.0.14, ThreadSafeCookieStore incompletely validates cookie Domain attributes. Missing private-section and default public-suffix rules, absent A-label normalization, locale-sensitive lowercasing, public-suffix host-only handling, and numeric or IP host checks allow one origin to store a cookie later sent to another origin. Applications sharing one client across trust domains can therefore receive attacker-injected cookies and may be exposed to session fixation. This issue is fixed in version 3.0.14.
CVE-2026-107229
MEDIUMPre-NVD 4.04.0—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 4.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (16th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
4.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.0Exploit: None knownExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 4.0
- EG Score
- 4.0MEDIUMmedium confidence
- EG Risk
- 18EG Risk 18/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity40% × 45%Exploitation0% × 40%Automatability0% × 15%CISA SSVC: Track at every mission impact level.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.3%
- EPSS %ILE
- 16th
- KEV
- Not listed
CISA SSVCTrack at every mission impact level.
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 7, 2026
Last Modified
October 8, 2026
Advisory Details (3)
Auto-updated Oct 7, 2026Patch available. Sources: github_commit, github_release, github.
githubMentions a patch (unverified)
Incomplete origin checks in the default cookie store allow cookie tossing onto public-suffix and IP-address hosts · Advisory · AsyncHttpClient/async-http-client · GitHub
Affected: 3.0.14. The fix bundles the public suffix list in full, including the private sec
https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-qjr7-w8pj-pmv9github_release Patch Available
AHC v3.0.14 Release
Patch available: AsyncHttpClient/async-http-client async-http-client-project-3.0.14
https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.14github_commit Patch Available
commit 7dc5bbc2d0a4 (AsyncHttpClient/async-http-client)
Patch available: AsyncHttpClient/async-http-client async-http-client-project-3.0.14 (contains commit 7dc5bbc2d0a4)
https://github.com/AsyncHttpClient/async-http-client/commit/7dc5bbc2d0a48aa2a9caf089a626dcfd333168e9Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 7× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-09 20:06 UTCEPSS rescore
- 2026-10-08 18:40 UTCEG score recompute
- 2026-10-08 18:01 UTCEG score recompute
- 2026-10-08 17:11 UTCEPSS rescore
- 2026-10-07 21:24 UTCEG score recompute
- 2026-10-07 21:01 UTCEG score recompute
- 2026-10-07 21:01 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-1275 · CWE-384
Frequently asked(5)
What is CVE-2026-107229?
CVE-2026-107229 is a medium vulnerability published on October 7, 2026. The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.16.0 until 3.0.14, ThreadSafeCookieStore incompletely validates cookie Domain attributes. Missing private-section and default public-suffix rules, absent…
When was CVE-2026-107229 disclosed?
CVE-2026-107229 was first published on October 7, 2026, with the most recent update on October 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-107229 actively exploited?
CVE-2026-107229 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (16th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-107229?
CVE-2026-107229 has a CVSS base score of 4.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-107229?
A fix for CVE-2026-107229 is available: update to the fixed version the vendor names in its advisory.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-107229
Is Your Infrastructure Affected by CVE-2026-107229?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.