Lucene search
K

CVE-2026-40194 phpseclib has a variable-time HMAC comparison in SSH2::get_binary_packet() using != instead of hash_equals()

🗓️ 10 Apr 2026 20:24:06Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 26 Views

CVE-2026-40194: phpseclib's SSH2 get_binary_packet uses != for HMAC comparison, causing variable-time checks; fixed in versions 3.0.51, 2.0.53, and 1.0.28.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-40194
10 Apr 202620:24
attackerkb
Chainguard
CVE-2026-40194 vulnerabilities
28 Apr 202619:17
cgr
Circl
CVE-2026-40194
10 Apr 202622:37
circl
CNNVD
phpseclib 安全漏洞
10 Apr 202600:00
cnnvd
CVE
CVE-2026-40194
10 Apr 202620:24
cve
Debian CVE
CVE-2026-40194
10 Apr 202620:24
debiancve
EUVD
EUVD-2026-21597
10 Apr 202620:58
euvd
Fedora
[SECURITY] Fedora 44 Update: nextcloud-33.0.3-1.fc44
10 May 202602:55
fedora
Fedora
[SECURITY] Fedora 42 Update: nextcloud-33.0.3-1.fc42
10 May 202603:23
fedora
Fedora
[SECURITY] Fedora 43 Update: nextcloud-33.0.3-1.fc43
11 May 202601:03
fedora
Rows per page
[
  {
    "vendor": "phpseclib",
    "product": "phpseclib",
    "versions": [
      {
        "version": ">= 0.1.1, < 1.0.28",
        "status": "affected"
      },
      {
        "version": ">= 2.0.0, < 2.0.53",
        "status": "affected"
      },
      {
        "version": ">= 3.0.0, < 3.0.51",
        "status": "affected"
      }
    ]
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation