CVE catalog
CVE-2026-107231
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, Realm.Builder treats a Digest challeng
- Severity
- High · CVSS 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.24% · Oct 25, 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, Realm.Builder treats a Digest challenge that yields no usable nonce as a Basic challenge. A malicious origin or proxy can label a challenge Digest while omitting or emptying the nonce, causing the client to resend the username and password using reversible Basic authentication. Both origin and proxy challenge parsers are affected. This issue is fixed in versions 3.0.13 and 2.16.1.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | async-http-client | sid | 2.12.3-1 | vulnerable |
| Debian | async-http-client | bookworm | 2.12.3-1 | vulnerable |
| Debian | async-http-client | bookworm-security | 2.12.3-1+deb12u1 | vulnerable |
| Maven | org.asynchttpclient:async-http-client | Not reported | 2.16.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | async-http-client | source | sid | (unfixed) | not yet assigned | Not reported | [1150331] |
| Debian | async-http-client | source | bookworm | (unfixed) | not yet assigned | Not reported | [1150331] |
| Maven | org.asynchttpclient:async-http-client | maven | Not reported | 2.16.1 | Not reported | GHSA-RQF5-2WXV-RJF4 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libasync-http-client-java]Affected
Source package: [async-http-client]
Details (4)
2.12.3-1· all · bookwormAffected
nvd · async-http-client · debian · bookworm; nvd · async-http-client · debian · 12
2.12.3-1· all · bookwormAffected
nvd · async-http-client · debian · bookworm; nvd · async-http-client · debian · 12
2.12.3-1+deb12u1· all · bookworm-securityAffected
nvd · async-http-client · debian · bookworm; nvd · async-http-client · debian · 12
2.12.3-1+deb12u1· all · bookworm-securityAffected
nvd · async-http-client · debian · bookworm; nvd · async-http-client · debian · 12
Observed:
References
- [https://github.com/advisories/GHSA-rqf5-2wxv-rjf4]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-107231]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-107231]
- [https://security-tracker.debian.org/tracker/CVE-2026-107231]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-107231.json]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]