CVE-2026-38970 Denial of service in n/a
An attacker can cause a denial of service by providing a PDF with deeply nested objects, crashing the application using the pdfcpu library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-38970?
CVE-2026-38970 is a high-severity denial of service vulnerability in n/a, published on 2 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
pdfcpu through v0.11.1 contains an uncontrolled-recursion denial-of-service issue in pkg/pdfcpu/model/parse.go. The parser descends recursively through nested PDF objects, including arrays, via ParseObjectContext() and parseArray() without enforcing a maximum nesting depth.
Weakness: CWE-674
Which versions are affected by CVE-2026-38970?
How do I fix CVE-2026-38970?
No fix has been published for CVE-2026-38970 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-38970 being exploited?
There is no known exploitation of CVE-2026-38970 in the wild and no public exploit code.
Sources
Also known as GHSA-7wmm-6g5p-mv4p.