CVE-2026-32595 | Traefik up to 2.11.40/3.6.10 timing discrepancy (GHSA-g3hg-j4jv-cwfr)

VDB-352060 · CVE-2026-32595 · GHSA-G3HG-J4JV-CWFR TRAEFIK UP TO 2.11.40/3.6.10 TIMING DISCREPANCY HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.6 $0-$5k 2.57+ Summaryinfo A vulnerability, which was classified as problematic, was found in Traefik up to 2.11.40/3.6.10. Impacted is an unknown function. Executing a manipulation can lead to timing discrepancy. This vulnerability is registered as CVE-2026-32595. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component. Detailsinfo A vulnerability was found in Traefik up to 2.11.40/3.6.10. It has been declared as problematic. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a timing discrepancy vulnerability. The CWE definition for the vulnerability is CWE-208. Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. As an impact it is known to affect confidentiality. CVE summarizes: Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 comtain BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taking ~166ms. When the username does not exist, the response returns immediately in ~0.6ms. This ~298x timing difference is observable over the network and allows an unauthenticated attacker to reliably distinguish valid from invalid usernames. This issue is patched in versions 2.11.41, 3.6.11 and 3.7.0-ea.2. The advisory is shared for download at github.com. This vulnerability was named CVE-2026-32595 since 03/12/2026. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592. Upgrading to version 2.11.41, 3.6.11 or 3.7.0-ea.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Productinfo Name Traefik Version 2.11.0 2.11.1 2.11.2 2.11.3 2.11.4 2.11.5 2.11.6 2.11.7 2.11.8 2.11.9 2.11.10 2.11.11 2.11.12 2.11.13 2.11.14 2.11.15 2.11.16 2.11.17 2.11.18 2.11.19 2.11.20 2.11.21 2.11.22 2.11.23 2.11.24 2.11.25 2.11.26 2.11.27 2.11.28 2.11.29 2.11.30 2.11.31 2.11.32 2.11.33 2.11.34 2.11.35 2.11.36 2.11.37 2.11.38 2.11.39 2.11.40 3.6.0 3.6.1 3.6.2 3.6.3 3.6.4 3.6.5 3.6.6 3.6.7 3.6.8 3.6.9 3.6.10 Website Product: https://github.com/traefik/traefik/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 3.7 VulDB Meta Temp Score: 3.6 VulDB Base Score: 3.7 VulDB Temp Score: 3.6 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Timing discrepancy CWE: CWE-208 / CWE-203 / CWE-200 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Traefik 2.11.41/3.6.11/3.7.0-ea.2 Timelineinfo 03/12/2026 CVE reserved 03/20/2026 +8 days Advisory disclosed 03/20/2026 +0 days VulDB entry created 03/20/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-g3hg-j4jv-cwfr Status: Confirmed CVE: CVE-2026-32595 (🔒) GCVE (CVE): GCVE-0-2026-32595 GCVE (VulDB): GCVE-100-352060 Entryinfo Created: 03/20/2026 13:29 Changes: 03/20/2026 13:29 (66) Complete: 🔍 Cache ID: 99:F1A:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸