How many CVEs have patched xfa?

1 published CVEs changed xfa in py-pdf/pypdf, in 2 distinct patches totalling 3 changed lines, between 2026 and 2026.

What is the latest CVE that changed xfa?

CVE-2026-27888 (pypdf: Manipulated FlateDecode XFA streams can exhaust RAM), published 2026-02-26, changed lines 1327 to 1344 of pypdf/_doc_common.py.

How does xfa compare to the rest of py-pdf/pypdf?

py-pdf/pypdf has 52 CVEs with a located fix in total; 1 of them changed xfa.

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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py-pdf/pypdf

Function

xfa

Name: xfa in py-pdf/pypdf: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

pypdf/_doc_common.py

Last patched February 26, 2026

1

CVEs

That changed this function

2

Distinct patches

Backports counted once

3

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

xfa in py-pdf/pypdf was changed by 1 published CVE fixes in 2026, in 2 distinct patches that added or removed 3 lines in total.

py-pdf/pypdf has 52 CVEs with a located fix in total, so 2% of them touched this function.

CVEs that patched it

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

pypdf: Manipulated FlateDecode XFA streams can exhaust RAM
CVE-2026-27888 · lines 1327–1344 · +1 −2 in 2 hunks
Medium · CVSS 6.6
EPSS 0.7%2026-02-26

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1

_flattenpypdf/_doc_common.py

3 CVEs · 4 patches2026

2_get_outlinepypdf/_doc_common.py3 CVEs · 4 patches2026

3convert_to_intpypdf/_doc_common.py2 CVEs · 2 patches2026

4modification_date_rawpypdf/_doc_common.py2 CVEs · 2 patches2026

5_get_attachment_contentspypdf/_doc_common.py1 CVEs · 2 patches2026

Other hotspots in the repository

Functions in py-pdf/pypdf changed by the most CVE fixes.

decode5 CVEs · pypdf/filters.py _decompress_with_limit4 CVEs · pypdf/filters.py decompress3 CVEs · pypdf/filters.py _get_outline3 CVEs · pypdf/_doc_common.py _flatten3 CVEs · pypdf/_doc_common.py _extract_text3 CVEs · pypdf/_page.py

All patched functions in py-pdf/pypdf

Frequently asked questions

Common questions about CVE fixes to xfa.

How many CVEs have patched xfa?: 1 published CVEs changed xfa in py-pdf/pypdf, in 2 distinct patches totalling 3 changed lines, between 2026 and 2026.
What is the latest CVE that changed xfa?: CVE-2026-27888 (pypdf: Manipulated FlateDecode XFA streams can exhaust RAM), published 2026-02-26, changed lines 1327 to 1344 of pypdf/_doc_common.py.
How does xfa compare to the rest of py-pdf/pypdf?: py-pdf/pypdf has 52 CVEs with a located fix in total; 1 of them changed xfa.
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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