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With package: python313Packages.pyaxencoapi

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Permalink CVE-2026-23558
7.8 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Changed (C)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): High (H)
updated 4 days, 15 hours ago by @SigmaSquadron Activity log
  • Created suggestion 6 days, 5 hours ago
  • @SigmaSquadron dismissed 4 days, 15 hours ago
grant table v2 race in status page mapping

The adjustments made for XSA-379 as well as those subsequently becoming XSA-387 still left a race window, when a HVM or PVH guest does a grant table version change from v2 to v1 in parallel with mapping the status page(s) via XENMEM_add_to_physmap. Some of the status pages may then be freed while mappings of them would still be inserted into the guest's secondary (P2M) page tables.

Affected products

Xen
  • ==consult Xen advisory XSA-486

Matching in nixpkgs

pkgs.xen

Type-1 hypervisor intended for embedded and hyperscale use cases

pkgs.xenon

Monitoring tool based on radon

pkgs.hhexen

Linux port of Raven Game's Hexen

pkgs.uhexen2

Cross-platform port of Hexen II game

pkgs.xenomapper

Utility for post processing mapped reads that have been aligned to a primary genome and a secondary genome and binning reads into species specific, multimapping in each species, unmapped and unassigned bins

pkgs.nxengine-evo

Complete open-source clone/rewrite of the masterpiece jump-and-run platformer Doukutsu Monogatari (also known as Cave Story)

pkgs.grub2_pvgrub_image

PvGrub2 image for booting PV Xen guests

  • nixos-unstable -
    • nixpkgs-unstable
    • nixos-unstable-small
  • nixos-25.11 -
    • nixos-25.11-small
    • nixpkgs-25.11-darwin

pkgs.grub2_pvhgrub_image

PvGrub2 image for booting PVH Xen guests

  • nixos-unstable -
    • nixpkgs-unstable
    • nixos-unstable-small
  • nixos-25.11 -
    • nixos-25.11-small
    • nixpkgs-25.11-darwin

pkgs.haskellPackages.xeno

A fast event-based XML parser in pure Haskell

  • nixos-unstable 0.6
    • nixpkgs-unstable 0.6
    • nixos-unstable-small 0.6
  • nixos-25.11 0.6
    • nixos-25.11-small 0.6
    • nixpkgs-25.11-darwin 0.6

Package maintainers

Already patched in all branches.
Dismissed
Permalink CVE-2026-23557
6.5 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Changed (C)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): High (H)
updated 4 days, 15 hours ago by @SigmaSquadron Activity log
  • Created suggestion 6 days, 5 hours ago
  • @SigmaSquadron dismissed 4 days, 15 hours ago
Xenstored DoS via XS_RESET_WATCHES command

Any guest can cause xenstored to crash by issuing a XS_RESET_WATCHES command within a transaction due to an assert() triggering. In case xenstored was built with NDEBUG #defined nothing bad will happen, as assert() is doing nothing in this case. Note that the default is not to define NDEBUG for xenstored builds even in release builds of Xen.

Affected products

Xen
  • ==consult Xen advisory XSA-484

Matching in nixpkgs

pkgs.xen

Type-1 hypervisor intended for embedded and hyperscale use cases

pkgs.xenon

Monitoring tool based on radon

pkgs.hhexen

Linux port of Raven Game's Hexen

pkgs.uhexen2

Cross-platform port of Hexen II game

pkgs.xenomapper

Utility for post processing mapped reads that have been aligned to a primary genome and a secondary genome and binning reads into species specific, multimapping in each species, unmapped and unassigned bins

pkgs.nxengine-evo

Complete open-source clone/rewrite of the masterpiece jump-and-run platformer Doukutsu Monogatari (also known as Cave Story)

pkgs.grub2_pvgrub_image

PvGrub2 image for booting PV Xen guests

  • nixos-unstable -
    • nixpkgs-unstable
    • nixos-unstable-small
  • nixos-25.11 -
    • nixos-25.11-small
    • nixpkgs-25.11-darwin

pkgs.grub2_pvhgrub_image

PvGrub2 image for booting PVH Xen guests

  • nixos-unstable -
    • nixpkgs-unstable
    • nixos-unstable-small
  • nixos-25.11 -
    • nixos-25.11-small
    • nixpkgs-25.11-darwin

pkgs.haskellPackages.xeno

A fast event-based XML parser in pure Haskell

  • nixos-unstable 0.6
    • nixpkgs-unstable 0.6
    • nixos-unstable-small 0.6
  • nixos-25.11 0.6
    • nixos-25.11-small 0.6
    • nixpkgs-25.11-darwin 0.6

Package maintainers

Already patched in all branches.