CVE-2026-35233: An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range sh_link…
CVE-2026-35233 · Severity: medium · CVSS 4.4 · Published 2026-05-01
An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range sh_link field. When root-level dtrace attaches to -- or instruments -- that process (via dtrace -p , pid probes, or USDT), the ELF parser reads heap memory beyond the allocated section cache array without any bounds check. This results in an uninitialized/out-of-bounds heap read that can cause a NULL pointer dereference crash of the dtrace process (DoS), or -- depending on heap layout -- a read-then-use of a garbage pointer controlled by adjacent allocations, providing a foothold toward further exploitation in a privileged context.
No. Junglewise Threat Intelligence has no report of CVE-2026-35233 being exploited in the wild.
How severe is CVE-2026-35233?
Medium severity, with a CVSS score of 4.4, published 1 May 2026.
Which products and versions are affected?
Oracle Linux. The advisory does not name versions.
Is there a fix for CVE-2026-35233?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-35233?
Check whether you run Oracle Linux. 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.