Dashboard / CVE-2026-102998

CVE-2026-102998

HIGH
MEDIUM Priority: 0.03 BB Relevance: 77/100
Published: 2026-09-30 Modified: 2026-11-02 First seen: 2026-11-02 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: None
VC: None
VI: None
VA: High

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF with form field values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant selection-data work inside a loop when an application updates fields with flattening enabled, resulting in excessive runtimes and application unavailability. This issue is fixed in version 6.19.0.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
py-pdf pypdf < 6.19.0

References & Advisories (4)

Bug Bounty Relevance

77 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.7 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.34%
Raw Score 0.003400
Percentile 27.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00340
2026-11-12
0.00340
2026-11-10
0.00340
2026-11-09
0.00340
2026-11-08
0.00340
2026-11-07
0.00340
2026-11-06
0.00340
2026-11-05
0.00340
2026-11-04
0.00340
2026-11-03
0.00340
2026-11-02
0.00340

Intelligence Sources

nvd ref →

External Links