Dashboard / CVE-2026-96778

CVE-2026-96778

HIGH
MEDIUM Priority: 0.04 BB Relevance: 65/100
Published: 2026-10-21 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Passive
AT: Present
VC: High
VI: High
VA: High

Description

Pillow is a Python imaging library. From 9.4.0 until 13.0.0, ImagingJpegEncode() in src/libImaging/JpegEncode.c can call jpeg_write_marker() for a JPEG COM comment when an ICC profile has exactly filled the 65536-byte encoder buffer. libjpeg writes one byte before checking the exhausted free_in_buffer counter, which then wraps and permits the attacker-controlled comment and subsequent compressed image data to overwrite adjacent heap memory. Re-saving an untrusted image as JPEG while preserving its ICC profile and forwarded comment can crash the process and may enable code execution in suitable runtime and heap layouts. This issue is fixed in version 13.0.0.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
python pillow 9.4.0 – 13.0.0
python-pillow Pillow >= 9.4.0, < 13.0.0

References & Advisories (4)

Bug Bounty Relevance

65 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

7.7 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.45%
Raw Score 0.004540
Percentile 39.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00454
2026-10-28
0.00454

Intelligence Sources

mitre ref →
nvd ref →

External Links