How many CVEs have patched read_prev_trailer?

1 published CVEs changed read_prev_trailer in python-pillow/pillow, in 2 distinct patches totalling 20 changed lines, between 2026 and 2026.

What is the latest CVE that changed read_prev_trailer?

CVE-2026-42310 (Pillow: PDF Parsing Trailer Infinite Loop (DoS)), published 2026-05-09, changed lines 688 to 709 of src/PIL/PdfParser.py.

How does read_prev_trailer compare to the rest of python-pillow/pillow?

python-pillow/pillow has 66 CVEs with a located fix in total; 1 of them changed read_prev_trailer.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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python-pillow/pillow

Function

read_prev_trailer

Name: read_prev_trailer in python-pillow/pillow: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

src/PIL/PdfParser.py

Last patched May 9, 2026

1

CVEs

That changed this function

2

Distinct patches

Backports counted once

20

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

read_prev_trailer in python-pillow/pillow was changed by 1 published CVE fixes in 2026, in 2 distinct patches that added or removed 20 lines in total.

python-pillow/pillow has 66 CVEs with a located fix in total, so 2% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed read_prev_trailer, newest first, with the lines each fix touched.

Pillow: PDF Parsing Trailer Infinite Loop (DoS)
CVE-2026-42310 · lines 688–709 · +16 −4 in 4 hunks
Medium · CVSS 5.1
EPSS 0.2%2026-05-09

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Other functions in these files

Functions in the same file that CVE fixes also changed.

Other hotspots in the repository

Functions in python-pillow/pillow changed by the most CVE fixes.

_decode_jpeg_stream8 CVEs · src/PIL/BlpImagePlugin.py j2k_decode_entry6 CVEs · src/libImaging/Jpeg2KDecode.c getmask26 CVEs · src/PIL/ImageFont.py readline5 CVEs · src/PIL/EpsImagePlugin.py _safe_read5 CVEs · src/PIL/ImageFile.py _safe_read5 CVEs · src/PIL/BlpImagePlugin.py

All patched functions in python-pillow/pillow

Frequently asked questions

Common questions about CVE fixes to read_prev_trailer.

How many CVEs have patched read_prev_trailer?: 1 published CVEs changed read_prev_trailer in python-pillow/pillow, in 2 distinct patches totalling 20 changed lines, between 2026 and 2026.
What is the latest CVE that changed read_prev_trailer?: CVE-2026-42310 (Pillow: PDF Parsing Trailer Infinite Loop (DoS)), published 2026-05-09, changed lines 688 to 709 of src/PIL/PdfParser.py.
How does read_prev_trailer compare to the rest of python-pillow/pillow?: python-pillow/pillow has 66 CVEs with a located fix in total; 1 of them changed read_prev_trailer.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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