DailyCVE@dailycve
🔴 Pillow, Heap Buffer Overflow, #CVE-2026-96778 (High) -DC-Oct2026-3619 https://dailycve.com/pillow-heap-buffer-overflow-cve-2026-96778-high-dc-oct2026-3619/
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CVE-2026-96778
LOWCVSS 7.7 · HIGHImmediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD 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.
0.0/ 10 priority
Sources & remediation
Other references
Weakness type (CWE)
CWE-787
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE