CVE-2026-85716
Description
A flaw was found in the AsyncHttpClient (AHC) library. This vulnerability allows a remote attacker to impersonate the server on a non-TLS (Transport Layer Security) or compromised network. The library's authentication process for SCRAM and Digest mutual-authentication does not properly verify server responses, even when a mismatch is detected. This could lead to information disclosure, as a malicious peer could be accepted as the legitimate server without proving knowledge of the shared secret.
Déclaration
Low: This flaw in the AsyncHttpClient library allows server impersonation only when an application communicates over a non-TLS or compromised transport. This limits the impact to environments where secure communication protocols are not enforced, as a peer could be accepted as the server without proving knowledge of the shared secret.
Mesure d'atténuation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Détails du score du système commun d'évaluation des vulnérabilités (CVSS)
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
Les mesures et les scores CVSS suivants sont préliminaires et sujets à révision.
Répartition des scores CVSS v3
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Score de base | 3.7 | N/A | 3.7 |
| Vecteur d'attaque | Network | N/A | Network |
| Complexité de l'attaque | High | N/A | High |
| Privilèges requis | None | N/A | None |
| Interaction avec l'utilisateur | None | N/A | None |
| Champ d'application | Unchanged | N/A | Unchanged |
| Confidentialité | None | N/A | None |
| Impact sur l'intégrité | Low | N/A | Low |
| Impact sur la disponibilité | None | N/A | None |
Vecteur
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
cve.org: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Comprendre la Défaillance (CWE)
Access Control,Integrity,Confidentiality
Technical Impact: Gain Privileges or Assume Identity; Modify Application Data; Execute Unauthorized Code or Commands
An attacker could gain access to sensitive data and possibly execute unauthorized code.
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