Is CVE-2026-84410 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-84410 being exploited in the wild.

How severe is CVE-2026-84410?

Informational severity, published 9 November 2026.

Which products and versions are affected?

Canonical Apport before 2.37.0.

How is CVE-2026-84410 attacked?

It is attacked with local access.

Am I affected by CVE-2026-84410?

Check whether you run Canonical Apport at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-84410: apport improper privilege management via ldd DT_AUDIT code execution

CVE-2026-84410 · Severity: info · Published 2026-11-09

Apport is Ubuntu's automatic crash reporting system that runs as root to collect and process system crash dumps. A local attacker can place a malicious crash file in the world-writable /var/crash directory, causing the root-level crash processing pipeline to execute arbitrary code with root privileges through a dynamic loader audit module. This provides complete system compromise without requiring authentication or memory corruption exploits.

Technologies: Canonical Apport. Vendors: Canonical.

Quick answers

Is CVE-2026-84410 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-84410 being exploited in the wild.
How severe is CVE-2026-84410?: Informational severity, published 9 November 2026.
Which products and versions are affected?: Canonical Apport before 2.37.0.
Is there a fix for CVE-2026-84410?: Yes: fixed in apport 2.37.0. Until then: Disable automatic crash reporting by masking the apport-autoreport.service and apport-autoreport.timer systemd units, or restrict write access to the /var/crash directory until the system can be updated. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-84410 attacked?: It is attacked with local access.
Am I affected by CVE-2026-84410?: Check whether you run Canonical Apport at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: apport 2.37.0

Disable automatic crash reporting by masking the apport-autoreport.service and apport-autoreport.timer systemd units, or restrict write access to the /var/crash directory until the system can be updated.

Technical details

The vulnerability is improper privilege management (CWE-269) combined with unsafe execution of untrusted binaries (CWE-78-adjacent). Apport's root-level automatic crash processing invokes ldd on an attacker-controlled ExecutablePath field from crash files, allowing exploitation of the ELF DT_AUDIT dynamic loader tag to load and execute arbitrary audit modules as root. The vulnerability requires only that the attacker place a crafted file in /var/crash and have local system access; automatic crash reporting must be enabled on the target.

Affected products

Canonical apport before 2.37.0

Timeline

2026-08-21: disclosed
2026-11-09: advisory
2026-11-09: patched: apport 2.37.0 replaces ldd call with readelf to safely analyze binary dependencies

References

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