How many CVEs have patched _glyph_id_to_bytes?

1 published CVEs changed _glyph_id_to_bytes in py-pdf/pypdf, in 2 distinct patches totalling 8 changed lines, between 2026 and 2026.

What is the latest CVE that changed _glyph_id_to_bytes?

CVE-2026-102998 (pypdf: Possible long runtimes when generating appearance streams), published 2026-09-30, changed lines 406 to 485 of pypdf/generic/_appearance_stream.py.

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

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

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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_glyph_id_to_bytes

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Weaknesses (CWE)The MITRE CWE weakness catalog
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Patched Functions
Py Pdf
Pypdf
_glyph_id_to_bytes

_glyph_id_to_bytes in py-pdf/pypdf: Patched by 1 CVEs

py-pdf/pypdf

Function

_glyph_id_to_bytes

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

pypdf/generic/_appearance_stream.py

Last patched September 30, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

_glyph_id_to_bytes in py-pdf/pypdf was changed by 1 published CVE fixes in 2026, in 2 distinct patches that added or removed 8 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 _glyph_id_to_bytes, newest first, with the lines each fix touched.

pypdf: Possible long runtimes when generating appearance streams
CVE-2026-102998 · lines 406–485 · +5 −3 in 3 hunks
High · CVSS 8.7
EPSS 0.3%2026-09-30

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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 _glyph_id_to_bytes.

How many CVEs have patched _glyph_id_to_bytes?: 1 published CVEs changed _glyph_id_to_bytes in py-pdf/pypdf, in 2 distinct patches totalling 8 changed lines, between 2026 and 2026.
What is the latest CVE that changed _glyph_id_to_bytes?: CVE-2026-102998 (pypdf: Possible long runtimes when generating appearance streams), published 2026-09-30, changed lines 406 to 485 of pypdf/generic/_appearance_stream.py.
How does _glyph_id_to_bytes compare to the rest of py-pdf/pypdf?: py-pdf/pypdf has 52 CVEs with a located fix in total; 1 of them changed _glyph_id_to_bytes.
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

pypdf/generic/_appearance_stream.py on GitHub (opens in a new tab)
All patched functions in py-pdf/pypdf
Patched functions directory

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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On this page

Overview
CVEs that patched it
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FAQ
References