CVE-2026-84311Disclosure(pypdf_project / pypdf)

LOWCVSS 3.3 · LOW

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_page.py PageObject._extract_text and PageObject.extract_xform_text to traverse a directed acyclic graph of reused form XObjects in which each form invokes a child multiple times, creating exponentially many traversal paths and causing long runtimes and large memory consumption. This issue is fixed in version 6.16.1.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-834

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • pypdf

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Products
pypdf

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-02: 1Technical Details · 2026-09-02: 109-02
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • DailyCVE@dailycve
    Disclosure

    🟠 pypdf, Excessive Iteration Denial-of-Service, #CVE-2026-84311 (Medium) -DC-Sep2026-2080 https://dailycve.com/pypdf-excessive-iteration-denial-of-service-cve-2026-84311-medium-dc-sep2026-2080/

    Post summary

    The post announces CVE‑2026‑84311 in pypdf, describing it as a medium‑severity denial‑of‑service flaw, but offers no proof‑of‑concept, exploit details, or mitigation guidance.

    0000030
    233 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apppypdf_projectpypdf---

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