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Details of issue NIXPKGS-2026-2049

NIXPKGS-2026-2049
published 3 weeks, 2 days ago
open62541: security issues < 1.4.17
Permalink CVE-2026-11946
7.5 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): High (H)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 3 days ago
  • @LeSuisse ignored package open62541pp 3 weeks, 2 days ago
  • @LeSuisse ignored reference https://g… 3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
GetEndpoints Memory Exhaustion in open62541

An unauthenticated remote attacker can exhaust server memory via the GetEndpoints Discovery Service in open62541. The endpointUrl field of GetEndpointsRequest is not validated for length. An attacker can declare an arbitrarily large string (up to ~4.09 GB via the UInt32 length field) delivered across intermediate chunks without ever sending the final chunk. The server buffers all chunks in RAM indefinitely until the SecureChannel times out. The attack is pre-session and bypasses all encryption configurations. The issue affects open62541: from 1.4.0 through 1.4.16, from 1.5.0 through 1.5.4, master.

Affected products

open62541
  • =<1.5.4
  • ==master
  • =<1.4.16

Matching in nixpkgs

Ignored packages (1)

Package maintainers

Permalink CVE-2026-33592
7.5 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): High (H)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 3 days ago
  • @LeSuisse ignored package open62541pp 3 weeks, 2 days ago
  • @LeSuisse ignored reference https://g… 3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
FindServers Memory Exhaustion in open62541

An unauthenticated remote attacker can exhaust server memory via the FindServers Discovery Service in open62541. The serverUris field of FindServersRequest is not validated for length or array size. An attacker can declare an arbitrarily large string (up to ~3.9 GB) delivered across intermediate chunks without ever sending the final chunk. The server buffers all chunks in RAM indefinitely until the SecureChannel times out. The attack is pre-session and bypasses all encryption configuration. The issue affects open62541: from 1.4.0 through 1.4.16, from 1.5.0 through 1.5.4, master.

Affected products

open62541
  • =<1.5.4
  • ==master
  • =<1.4.16

Matching in nixpkgs

Ignored packages (1)

Package maintainers