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Details of issue NIXPKGS-2026-1594

NIXPKGS-2026-1594
published on
Permalink CVE-2026-44432
8.9 HIGH
  • CVSS version (CVSS): 4.0
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Attack Requirement (AT): Present (P)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Vulnerable System Impact Confidentiality (VC): None (N)
  • Vulnerable System Impact Integrity (VI): None (N)
  • Vulnerable System Impact Availability (VA): High (H)
  • Subsequent System Impact Confidentiality (SC): None (N)
  • Subsequent System Impact Integrity (SI): None (N)
  • Subsequent System Impact Availability (SA): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Attack Requirement (MAT): Present (P)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Vulnerable System Impact Confidentiality (MVC): None (N)
  • Modified Vulnerable System Impact Integrity (MVI): None (N)
  • Modified Vulnerable System Impact Availability (MVA): High (H)
  • Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
  • Modified Subsequent System Impact Integrity (MSI): Negligible (N)
  • Modified Subsequent System Impact Availability (MSA): High (H)
  • Safety (S): Not Defined (X)
  • Automatable (AU): Not Defined (X)
  • Recovery (R): Not Defined (X)
  • Value Density (V): Not Defined (X)
  • Vulnerability Response Effort (RE): Not Defined (X)
  • Provider Urgency (U): Not Defined (X)
  • Confidentiality Req. (CR): Not Defined (X)
  • Integrity Req. (IR): Not Defined (X)
  • Availability Req. (AR): Not Defined (X)
  • Exploit Maturity (E): Not Defined (X)
updated 1 week, 3 days ago by @LeSuisse Activity log
  • Created suggestion 1 week, 4 days ago
  • @LeSuisse ignored
    12 packages
    • kodiPackages.urllib3
    • python312Packages.types-urllib3
    • python313Packages.types-urllib3
    • python314Packages.types-urllib3
    • python312Packages.urllib3-future
    • python313Packages.urllib3-future
    • python314Packages.urllib3-future
    • python313Packages.lance-namespace-urllib3-client
    • python314Packages.lance-namespace-urllib3-client
    • python312Packages.opentelemetry-instrumentation-urllib3
    • python313Packages.opentelemetry-instrumentation-urllib3
    • python314Packages.opentelemetry-instrumentation-urllib3
    1 week, 3 days ago
  • @LeSuisse accepted 1 week, 3 days ago
  • @LeSuisse published on GitHub 1 week, 3 days ago
urllib3: Decompression-bomb safeguards bypassed in parts of the streaming API

urllib3 is an HTTP client library for Python. From 2.6.0 to before 2.7.0, urllib3 could decompress the whole response instead of the requested portion (1) during the second HTTPResponse.read(amt=N) call when the response was decompressed using the official Brotli library or (2) when HTTPResponse.drain_conn() was called after the response had been read and decompressed partially (compression algorithm did not matter here). These issues could cause urllib3 to fully decode a small amount of highly compressed data in a single operation. This could result in excessive resource consumption (high CPU usage and massive memory allocation for the decompressed data) on the client side. This vulnerability is fixed in 2.7.0.

Affected products

urllib3
  • ==>= 2.6.0, < 2.7.0

Matching in nixpkgs

Ignored packages (12)

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