Is there a public exploit for CVE-2026-113793?

No public exploit for CVE-2026-113793 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-113793?

CVE-2026-113793 scores CVSS 6 (v4.0), rated medium. EPSS puts the chance of exploitation in the next 30 days at 0.47%.

What does CVE-2026-113793 affect?

CVE-2026-113793 affects py-pdf pypdf.

6.0 Medium

pypdf is a free and open-source pure-python PDF library.

CVE-2026-113793

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires removing an object from a tree, for example an outline item. Patches This has been fixed in [pypdf==6.20.1](https://github.com/py-pdf/pypdf/releases/tag/6.20.1). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4188](https://github.com/py-pdf/pypdf/pull/4188).

Assessment

CVSS: 6 (v4.0)
Severity: Medium
EPSS: 0.47% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 21 October 2026
Last updated: 28 October 2026
Affected: py-pdf · pypdf · pypdf
Weakness: CWE-835
Assigner: security-advisories@github.com

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

At the source

References

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