CVE-2026-46333

In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The 'dumpability' of a task is fundamentally about the memory image of the task - the concept comes from whether it can core dump or not - and makes no sense when you don't have an associated mm. And almost all users do in fact use it only for the case where the task has a mm pointer. But we have one odd special case: ptrace_may_access() uses 'dumpable' to check various other things entirely independently of the MM (typically explicitly using flags like PTRACE_MODE_READ_FSCREDS). Including for threads that no longer have a VM (and maybe never did, like most kernel threads). It's not what this flag was designed for, but it is what it is. The ptrace code does check that the uid/gid matches, so you do have to be uid-0 to see kernel thread details, but this means that the traditional "drop capabilities" model doesn't make any difference for this all. Make it all make a *bit* more sense by saying that if you don't have a MM pointer, we'll use a cached "last dumpability" flag if the thread ever had a MM (it will be zero for kernel threads since it is never set), and require a proper CAP_SYS_PTRACE capability to override.
References
Link Resource
https://git.kernel.org/stable/c/01363cb3fbd0238ffdeb09f53e9039c9edf8a730 Patch
https://git.kernel.org/stable/c/15b828a46f305ae9f05a7c16914b3ce273474205 Patch
https://git.kernel.org/stable/c/2a93a4fac7b6051d3be7cd1b015fe7320cd0404d Patch
https://git.kernel.org/stable/c/31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a Patch
https://git.kernel.org/stable/c/4709234fd1b95136ceb789f639b1e7ea5de1b181 Patch
https://git.kernel.org/stable/c/6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d Patch
https://git.kernel.org/stable/c/8f907d345bae8f4b3f004c5abc56bf2dfb851ea7 Patch
https://git.kernel.org/stable/c/93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6 Patch
http://www.openwall.com/lists/oss-security/2026/05/15/9 Mailing List
http://www.openwall.com/lists/oss-security/2026/05/20/14 Mailing List
http://www.openwall.com/lists/oss-security/2026/05/20/16 Mailing List
https://lists.debian.org/debian-lts-announce/2026/05/msg00032.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2026/05/msg00035.html Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:19521 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:19540 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:19568 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:19569 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:19664 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:19666 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:19705 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:19711 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:19875 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:20051 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:20054 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:20129 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:20130 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:20299 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:20593 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:21701 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:21702 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:23468 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:23469 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:23470 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:23471 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:24814 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:33486
https://access.redhat.com/security/cve/CVE-2026-46333 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2477802 Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
https://github.com/0xdeadbeefnetwork/ssh-keysign-pwn/ Exploit Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46333.json Product Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

14 Jul 2026, 13:18

Type Values Removed Values Added
References
  • () https://cert-portal.siemens.com/productcert/html/ssa-019113.html -

01 Jul 2026, 13:17

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:33486 -
References () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46333.json - Third Party Advisory, Product () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46333.json - Product, Third Party Advisory

30 Jun 2026, 14:04

Type Values Removed Values Added
First Time Debian
Debian debian Linux
Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/01363cb3fbd0238ffdeb09f53e9039c9edf8a730 - () https://git.kernel.org/stable/c/01363cb3fbd0238ffdeb09f53e9039c9edf8a730 - Patch
References () https://git.kernel.org/stable/c/15b828a46f305ae9f05a7c16914b3ce273474205 - () https://git.kernel.org/stable/c/15b828a46f305ae9f05a7c16914b3ce273474205 - Patch
References () https://git.kernel.org/stable/c/2a93a4fac7b6051d3be7cd1b015fe7320cd0404d - () https://git.kernel.org/stable/c/2a93a4fac7b6051d3be7cd1b015fe7320cd0404d - Patch
References () https://git.kernel.org/stable/c/31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a - () https://git.kernel.org/stable/c/31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a - Patch
References () https://git.kernel.org/stable/c/4709234fd1b95136ceb789f639b1e7ea5de1b181 - () https://git.kernel.org/stable/c/4709234fd1b95136ceb789f639b1e7ea5de1b181 - Patch
References () https://git.kernel.org/stable/c/6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d - () https://git.kernel.org/stable/c/6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d - Patch
References () https://git.kernel.org/stable/c/8f907d345bae8f4b3f004c5abc56bf2dfb851ea7 - () https://git.kernel.org/stable/c/8f907d345bae8f4b3f004c5abc56bf2dfb851ea7 - Patch
References () https://git.kernel.org/stable/c/93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6 - () https://git.kernel.org/stable/c/93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6 - Patch
References () http://www.openwall.com/lists/oss-security/2026/05/15/9 - () http://www.openwall.com/lists/oss-security/2026/05/15/9 - Mailing List
References () http://www.openwall.com/lists/oss-security/2026/05/20/14 - () http://www.openwall.com/lists/oss-security/2026/05/20/14 - Mailing List
References () http://www.openwall.com/lists/oss-security/2026/05/20/16 - () http://www.openwall.com/lists/oss-security/2026/05/20/16 - Mailing List
References () https://lists.debian.org/debian-lts-announce/2026/05/msg00032.html - () https://lists.debian.org/debian-lts-announce/2026/05/msg00032.html - Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2026/05/msg00035.html - () https://lists.debian.org/debian-lts-announce/2026/05/msg00035.html - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:19521 - () https://access.redhat.com/errata/RHSA-2026:19521 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:19540 - () https://access.redhat.com/errata/RHSA-2026:19540 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:19568 - () https://access.redhat.com/errata/RHSA-2026:19568 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:19569 - () https://access.redhat.com/errata/RHSA-2026:19569 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:19664 - () https://access.redhat.com/errata/RHSA-2026:19664 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:19666 - () https://access.redhat.com/errata/RHSA-2026:19666 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:19705 - () https://access.redhat.com/errata/RHSA-2026:19705 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:19711 - () https://access.redhat.com/errata/RHSA-2026:19711 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:19875 - () https://access.redhat.com/errata/RHSA-2026:19875 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:20051 - () https://access.redhat.com/errata/RHSA-2026:20051 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:20054 - () https://access.redhat.com/errata/RHSA-2026:20054 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:20129 - () https://access.redhat.com/errata/RHSA-2026:20129 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:20130 - () https://access.redhat.com/errata/RHSA-2026:20130 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:20299 - () https://access.redhat.com/errata/RHSA-2026:20299 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:20593 - () https://access.redhat.com/errata/RHSA-2026:20593 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:21701 - () https://access.redhat.com/errata/RHSA-2026:21701 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:21702 - () https://access.redhat.com/errata/RHSA-2026:21702 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:23468 - () https://access.redhat.com/errata/RHSA-2026:23468 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:23469 - () https://access.redhat.com/errata/RHSA-2026:23469 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:23470 - () https://access.redhat.com/errata/RHSA-2026:23470 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:23471 - () https://access.redhat.com/errata/RHSA-2026:23471 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2026:24814 - () https://access.redhat.com/errata/RHSA-2026:24814 - Third Party Advisory
References () https://access.redhat.com/security/cve/CVE-2026-46333 - () https://access.redhat.com/security/cve/CVE-2026-46333 - Third Party Advisory
References () https://bugzilla.redhat.com/show_bug.cgi?id=2477802 - () https://bugzilla.redhat.com/show_bug.cgi?id=2477802 - Third Party Advisory
References () https://github.com/0xdeadbeefnetwork/ssh-keysign-pwn/ - () https://github.com/0xdeadbeefnetwork/ssh-keysign-pwn/ - Exploit, Third Party Advisory
References () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46333.json - () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46333.json - Third Party Advisory, Product

30 Jun 2026, 03:20

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:19521 -
  • () https://access.redhat.com/errata/RHSA-2026:19540 -
  • () https://access.redhat.com/errata/RHSA-2026:19568 -
  • () https://access.redhat.com/errata/RHSA-2026:19569 -
  • () https://access.redhat.com/errata/RHSA-2026:19664 -
  • () https://access.redhat.com/errata/RHSA-2026:19666 -
  • () https://access.redhat.com/errata/RHSA-2026:19705 -
  • () https://access.redhat.com/errata/RHSA-2026:19711 -
  • () https://access.redhat.com/errata/RHSA-2026:19875 -
  • () https://access.redhat.com/errata/RHSA-2026:20051 -
  • () https://access.redhat.com/errata/RHSA-2026:20054 -
  • () https://access.redhat.com/errata/RHSA-2026:20129 -
  • () https://access.redhat.com/errata/RHSA-2026:20130 -
  • () https://access.redhat.com/errata/RHSA-2026:20299 -
  • () https://access.redhat.com/errata/RHSA-2026:20593 -
  • () https://access.redhat.com/errata/RHSA-2026:21701 -
  • () https://access.redhat.com/errata/RHSA-2026:21702 -
  • () https://access.redhat.com/errata/RHSA-2026:23468 -
  • () https://access.redhat.com/errata/RHSA-2026:23469 -
  • () https://access.redhat.com/errata/RHSA-2026:23470 -
  • () https://access.redhat.com/errata/RHSA-2026:23471 -
  • () https://access.redhat.com/errata/RHSA-2026:24814 -
  • () https://access.redhat.com/security/cve/CVE-2026-46333 -
  • () https://bugzilla.redhat.com/show_bug.cgi?id=2477802 -
  • () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46333.json -

20 May 2026, 20:16

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2026/05/20/14 -
  • () http://www.openwall.com/lists/oss-security/2026/05/20/16 -

20 May 2026, 17:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 5.5
v2 : unknown
v3 : 7.1

19 May 2026, 16:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2026/05/msg00035.html -

18 May 2026, 13:16

Type Values Removed Values Added
References
  • () https://github.com/0xdeadbeefnetwork/ssh-keysign-pwn/ -
CWE CWE-269
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.5

18 May 2026, 07:16

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a -

16 May 2026, 13:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2026/05/msg00032.html -

15 May 2026, 20:16

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2026/05/15/9 -

15 May 2026, 14:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-15 14:16

Updated : 2026-07-15 02:22


NVD link : CVE-2026-46333

Mitre link : CVE-2026-46333

CVE.ORG link : CVE-2026-46333


JSON object : View

Products Affected

debian

  • debian_linux

linux

  • linux_kernel
CWE
CWE-269

Improper Privilege Management