SUSE-SU-2026:2609-1: important: Security update for apptainer

SLE-SECURITY-UPDATES null at suse.de
Wed Jun 24 16:33:02 UTC 2026


# Security update for apptainer

Announcement ID: SUSE-SU-2026:2609-1  
Release Date: 2026-06-24T08:46:20Z  
Rating: important  
References:

  * bsc#1260311
  * bsc#1262956
  * bsc#1264177
  * bsc#1265844
  * bsc#1266202
  * bsc#1266656
  * bsc#1267982

  
Cross-References:

  * CVE-2026-24137
  * CVE-2026-33186
  * CVE-2026-33814
  * CVE-2026-34986
  * CVE-2026-39821
  * CVE-2026-39827
  * CVE-2026-39828
  * CVE-2026-39829
  * CVE-2026-39830
  * CVE-2026-39831
  * CVE-2026-39832
  * CVE-2026-39833
  * CVE-2026-39834
  * CVE-2026-39835
  * CVE-2026-42508
  * CVE-2026-46595
  * CVE-2026-46597
  * CVE-2026-46598
  * CVE-2026-48785

  
CVSS scores:

  * CVE-2026-24137 ( SUSE ):  6.0
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-24137 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
  * CVE-2026-24137 ( NVD ):  5.8 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N
  * CVE-2026-33186 ( SUSE ):  8.6
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-33186 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-33186 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-33814 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33814 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33814 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-34986 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-34986 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-34986 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39821 ( SUSE ):  9.1
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39821 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39821 ( NVD ):  9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
  * CVE-2026-39827 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39827 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39827 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39828 ( SUSE ):  8.6
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39828 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39828 ( NVD ):  6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-39829 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39829 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39829 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39830 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39830 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39830 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
  * CVE-2026-39831 ( SUSE ):  8.6
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39831 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39831 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39832 ( SUSE ):  6.2
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
  * CVE-2026-39832 ( SUSE ):  8.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
  * CVE-2026-39832 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39833 ( SUSE ):  8.5
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39833 ( SUSE ):  7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39833 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39834 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39834 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39834 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-39835 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39835 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39835 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-42508 ( SUSE ):  8.6
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-42508 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-42508 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-46595 ( SUSE ):  8.6
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-46595 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-46595 ( NVD ):  10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
  * CVE-2026-46597 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-46597 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-46597 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-46598 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-46598 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-46598 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-48785 ( SUSE ):  4.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

  
Affected Products:

  * HPC Module 15-SP7
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7

  
  
An update that solves 19 vulnerabilities can now be installed.

## Description:

This update for apptainer fixes the following issues

  * CVE-2026-24137: github.com/sigstore/sigstore/pkg/tuf: legacy TUF client
    allows for arbitrary file writes with target cache path traversal
    (bsc#1264177).
  * CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper
    validation of the HTTP/2: path pseudo- header (bsc#1260311).
  * CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport
    when given bad SETTINGS_MAX_FRAME_SIZE (bsc#1265844).
  * CVE-2026-34986: github.com/go-jose/go-jose/v4,github.com/go-jose/go-jose/v3:
    crafted JWE input with a missing encrypted key can lead to a denial of
    service (bsc#1262956).
  * CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only
    Punycode-encoded labels allows for validation bypass and privilege
    escalation (bsc#1266656).
  * CVE-2026-39827: memory leak when rejecting channels can lead to DoS in
    golang.org/x/crypto/ssh (bsc#1266202).
  * CVE-2026-39828: bypass of certificate restrictions in
    golang.org/x/crypto/ssh (bsc#1266202).
  * CVE-2026-39829: pathological RSA/DSA parameters may cause DoS in
    golang.org/x/crypto/ssh (bsc#1266202).
  * CVE-2026-39830: client can cause server deadlock on unexpected responses in
    golang.org/x/crypto/ssh (bsc#1266202).
  * CVE-2026-39831: bypass of FIDO/U2F security keys physical interaction in
    golang.org/x/crypto/ssh (bsc#1266202).
  * CVE-2026-39832: agent constraints dropped when forwarding keys in
    golang.org/x/crypto/ssh/agent (bsc#1266202).
  * CVE-2026-39833: key constraints not enforced in
    golang.org/x/crypto/ssh/agent (bsc#1266202).
  * CVE-2026-39834: infinite loop on large channel writes in
    golang.org/x/crypto/ssh (bsc#1266202).
  * CVE-2026-39835: server panic during CheckHostKey/Authenticate in
    golang.org/x/crypto/ssh (bsc#1266202).
  * CVE-2026-42508: auth bypass via unenforced @revoked status in
    golang.org/x/crypto/ssh/knownhosts (bsc#1266202).
  * CVE-2026-46595: VerifiedPublicKeyCallback permissions skip enforcement in
    golang.org/x/crypto/ssh (bsc#1266202).
  * CVE-2026-46597: byte arithmetic causes underflow and panic in
    golang.org/x/crypto/ssh (bsc#1266202).
  * CVE-2026-46598: pathological inputs can lead to client panic in
    golang.org/x/crypto/ssh/agent (bsc#1266202).
  * CVE-2026-48785: incorrect path matching for limit container paths directive
    (bsc#1267982).

Changes for apptainer:

  * Update apptainer to version v1.5.1

  * Work around segmentation fault sometimes seen while `mksquashfs` under proot
    is creating a SIF file.

  * Update bundled PRoot to version 5.4.0-rootless.3 in order to fix a problem
    where SIF files could be corrupted when `mksquashfs` died with a signal. The
    proot command was not passing back an error exit code.
  * Updated bundled `squashfuse_ll` to version 0.6.2 in order to fix a crash
    sometimes seen with apptainer in unprivileged docker.
  * Update bundled fuse2fs to version 1.47.4 instead of patching the bugs in
    1.47.3.
  * Fix a crash that happened when `/etc/resolv.conf` was a symlink while
    building from a definition file using the localimage bootstrap.
  * Support hosts that have an /etc/resolv.conf symlink pointing to `../run` in
    addition to `/run`.
  * Change the download-dependencies script to skip downloading the PRoot source
    code on architectures that it is known to not support (that is: ppc _, s390_
    , and riscv*). In those situations Apptainer will skip trying to compile and
    run proot. As a result original owners and groups of files will not be
    preserved in SIF images built by unprivileged users, as was the case for all
    architectures prior to 1.5.0.
  * Fix panic encountered during progress bar update while pulling image.
  * Fix fakeroot overwriting root's username in `/etc/passwd` with the host
    user's name, a regression introduced in v1.5.0.
  * Add nonested flag for --mount specifications to prevent individual bind
    mounts from being passed to nested containers via `APPTAINER_BIND`.

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * HPC Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-HPC-15-SP7-2026-2609=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2609=1

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-2609=1

## Package List:

  * openSUSE Leap 15.6 (aarch64 x86_64)
    * apptainer-debuginfo-1.5.1-150600.4.24.1
    * apptainer-1.5.1-150600.4.24.1
  * openSUSE Leap 15.6 (noarch)
    * apptainer-sle15_6-1.5.1-150600.4.24.1
    * apptainer-leap-1.5.1-150600.4.24.1
    * apptainer-sle15_7-1.5.1-150600.4.24.1
    * apptainer-sle16-1.5.1-150600.4.24.1
  * HPC Module 15-SP7 (aarch64 x86_64)
    * apptainer-debuginfo-1.5.1-150600.4.24.1
    * apptainer-1.5.1-150600.4.24.1
  * HPC Module 15-SP7 (noarch)
    * apptainer-sle15_7-1.5.1-150600.4.24.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 x86_64)
    * apptainer-debuginfo-1.5.1-150600.4.24.1
    * apptainer-1.5.1-150600.4.24.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
    * apptainer-sle15_6-1.5.1-150600.4.24.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-24137.html
  * https://www.suse.com/security/cve/CVE-2026-33186.html
  * https://www.suse.com/security/cve/CVE-2026-33814.html
  * https://www.suse.com/security/cve/CVE-2026-34986.html
  * https://www.suse.com/security/cve/CVE-2026-39821.html
  * https://www.suse.com/security/cve/CVE-2026-39827.html
  * https://www.suse.com/security/cve/CVE-2026-39828.html
  * https://www.suse.com/security/cve/CVE-2026-39829.html
  * https://www.suse.com/security/cve/CVE-2026-39830.html
  * https://www.suse.com/security/cve/CVE-2026-39831.html
  * https://www.suse.com/security/cve/CVE-2026-39832.html
  * https://www.suse.com/security/cve/CVE-2026-39833.html
  * https://www.suse.com/security/cve/CVE-2026-39834.html
  * https://www.suse.com/security/cve/CVE-2026-39835.html
  * https://www.suse.com/security/cve/CVE-2026-42508.html
  * https://www.suse.com/security/cve/CVE-2026-46595.html
  * https://www.suse.com/security/cve/CVE-2026-46597.html
  * https://www.suse.com/security/cve/CVE-2026-46598.html
  * https://www.suse.com/security/cve/CVE-2026-48785.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1260311
  * https://bugzilla.suse.com/show_bug.cgi?id=1262956
  * https://bugzilla.suse.com/show_bug.cgi?id=1264177
  * https://bugzilla.suse.com/show_bug.cgi?id=1265844
  * https://bugzilla.suse.com/show_bug.cgi?id=1266202
  * https://bugzilla.suse.com/show_bug.cgi?id=1266656
  * https://bugzilla.suse.com/show_bug.cgi?id=1267982

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