The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.13 and 2.16.1, cross-host request replay updates the current request but leaves the target request and related proxy context pointing at the original origin. Connection-pool selection, CONNECT handling, realm selection, and TLS setup can consequently send the original host's path, Host header, Authorization credentials, or plaintext request to the replay destination. Documented ResponseFilter failover and retry paths can trigger the replay. This issue is fixed in versions 3.0.13 and 2.16.1.
CVE-2026-107282
CRITICALPre-NVD 9.49.4
EchelonGraph scoreLOW confidence
This critical-severity CVE scores 9.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). 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: secondary
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 9.4Exploit: None knownExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 9.4
- EG Score
- 9.4CRITICALlow confidence
- EG Risk
- 47EG Risk 47/100CISA 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 computedSeverity94% × 45%Exploitation0% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). 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 7, 2026
Advisory Details (5)
Auto-updated Oct 7, 2026Patch available. Sources: github, github_commit, github_release.
github_release Patch Available
AHC v3.0.13 Release
Patch available: AsyncHttpClient/async-http-client async-http-client-project-3.0.13
https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13github_release Patch Available
AHC v2.16.1 Release
Patch available: AsyncHttpClient/async-http-client async-http-client-project-2.16.1
https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1github_commit Patch Available
commit bbc31aed3b04 (AsyncHttpClient/async-http-client)
Patch available: AsyncHttpClient/async-http-client async-http-client-project-2.16.1 (contains commit bbc31aed3b04)
https://github.com/AsyncHttpClient/async-http-client/commit/bbc31aed3b044f9f7a126cf689a8c8d7ad2ae1cbgithub_commit Patch Available
commit 15b254514a41 (AsyncHttpClient/async-http-client)
Patch available: AsyncHttpClient/async-http-client async-http-client-project-3.0.13 (contains commit 15b254514a41)
https://github.com/AsyncHttpClient/async-http-client/commit/15b254514a411623e5f1d8c99ea79c0f82f8a466githubMentions a patch (unverified)
Replay to a different host sends the original host request and credentials to the new host · Advisory · AsyncHttpClient/async-http-client · GitHub
Affected: 3.0.13 on the 3.x line and in 2.16.1 on the 2.x line. The target request now move
https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-jmqq-x5g9-9p2wWeakness Classification(3)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 3× in last 7d / 3× 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.
- 2026-10-07 22:25 UTCEG score recompute
- 2026-10-07 21:37 UTCEG score recompute
- 2026-10-07 21:36 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-319 · CWE-441 · CWE-522
Frequently asked(4)
What is CVE-2026-107282?
CVE-2026-107282 is a critical vulnerability published on October 7, 2026. The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.13 and 2.16.1, cross-host request replay updates the current request but leaves the target request and related proxy context pointing at the original…
When was CVE-2026-107282 disclosed?
CVE-2026-107282 was first published on October 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-107282?
CVE-2026-107282 has a CVSS base score of 9.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-107282?
A fix for CVE-2026-107282 is available: update to the fixed version the vendor names in its advisory.
Dependency Blast Radius
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