CVE-2026-128067
What it is
Pillow is a Python imaging library. From 2.3.0 through 12.3.0, Pillow applications that save compressed TIFF images through libtiff can pass attacker-controlled image geometry tags to the encoder while allocating its row buffer from the actual image dimensions. The affected TiffImagePlugin._save path allows ImageWidth, ImageLength, or SamplesPerPixel from exif=, tiffinfo=, or a source TIFF IFD to make libtiff consume a larger scanline than the buffer supplied by ImagingLibTiffEncode. This can read heap memory into the generated TIFF or crash the process. When TIFF Predictor 2 is enabled, libtiff can rewrite the oversized scanline in place and corrupt memory beyond the buffer. A carried-over PlanarConfiguration value of 2 instead makes libtiff use a shorter scanline and can produce an undecodable output file, but is not established to cause the out-of-bounds access. This issue is fixed in version 13.0.0.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, service disruption.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: not scored yet.
- Severity: 8.4 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Weakness
- CWE-787 · Out-of-bounds write
- Record status
- Received
Affected
- python-pillow Pillow >= 2.3.0, < 13.0.0
Attack profile CVSS 4.0 · 8.4
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- Present
- Privileges needed
- None
- User interaction
- None
- Confidentiality
- High
- Integrity
- Low
- Availability
- High
Raw vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-128067.md and follow it. Check whether this project is affected by CVE-2026-128067. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-xcvg-w56q-r89m
- https://github.com/python-pillow/Pillow/commit/53318b50e8e9e85a57d033d4d879e1398d97aeb1
- https://github.com/python-pillow/Pillow/commit/ec5f1cbcf67275641abaad5c065ffb64a0a804a9
- https://github.com/python-pillow/Pillow/releases/tag/13.0.0
References
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-xcvg-w56q-r89m
- https://github.com/python-pillow/Pillow/commit/53318b50e8e9e85a57d033d4d879e1398d97aeb1
- https://github.com/python-pillow/Pillow/commit/ec5f1cbcf67275641abaad5c065ffb64a0a804a9
- https://github.com/python-pillow/Pillow/releases/tag/13.0.0