How many CVEs have patched cupsd_client_s?

2 published CVEs changed cupsd_client_s in OpenPrinting/cups, in 2 distinct patches totalling 5 changed lines, between 2025 and 2026.

What is the latest CVE that changed cupsd_client_s?

CVE-2026-87876 (Cups: openprinting cups: remaining case-insensitive username matching in scheduler side paths (cve-2026-27447 follow-up)), published 2026-09-09, changed lines 33 of scheduler/client.h.

How does cupsd_client_s compare to the rest of OpenPrinting/cups?

OpenPrinting/cups has 13 CVEs with a located fix in total; 2 of them changed cupsd_client_s.

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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Weaknesses (CWE)The MITRE CWE weakness catalog
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Patched Functions
Openprinting
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Cupsd_client_s

cupsd_client_s in OpenPrinting/cups: Patched by 2 CVEs

OpenPrinting/cups

Type

cupsd_client_s

Name: cupsd_client_s in OpenPrinting/cups: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

scheduler/client.h

Last patched September 9, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2025–2026

Years

By CVE publication date

Overview

cupsd_client_s in OpenPrinting/cups was changed by 2 published CVE fixes between 2025 and 2026, in 2 distinct patches that added or removed 5 lines in total.

OpenPrinting/cups has 13 CVEs with a located fix in total, so 15% of them touched this function.

CVEs that patched it

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

Cups: openprinting cups: remaining case-insensitive username matching in scheduler side paths (cve-2026-27447 follow-up)
CVE-2026-87876 · line 33 · +1 −1
Low · CVSS 3.0
EPSS 0.3%2026-09-09
OpenPrinting CUPS slow client can halt cupsd, leading to a possible DoS attack
CVE-2025-58436 · lines 60–62 · +3 −0
Medium · CVSS 5.5
EPSS 0.2%2025-11-29

Get an alert when the next CVE fix lands in OpenPrinting/cups, with the patched functions.

Monitor cups CVEs

Other hotspots in the repository

Functions in OpenPrinting/cups changed by the most CVE fixes.

_cups_strcasecmp1 CVEs · scheduler/ipp.c _cups_strcasecmp1 CVEs · scheduler/policy.c only1 CVEs · scheduler/ipp.c ppd_parse_line1 CVEs · scheduler/ipp.c compare_quotas1 CVEs · scheduler/quotas.c _cups_strcasecmp1 CVEs · scheduler/auth.c

All patched functions in OpenPrinting/cups

Frequently asked questions

Common questions about CVE fixes to cupsd_client_s.

How many CVEs have patched cupsd_client_s?: 2 published CVEs changed cupsd_client_s in OpenPrinting/cups, in 2 distinct patches totalling 5 changed lines, between 2025 and 2026.
What is the latest CVE that changed cupsd_client_s?: CVE-2026-87876 (Cups: openprinting cups: remaining case-insensitive username matching in scheduler side paths (cve-2026-27447 follow-up)), published 2026-09-09, changed lines 33 of scheduler/client.h.
How does cupsd_client_s compare to the rest of OpenPrinting/cups?: OpenPrinting/cups has 13 CVEs with a located fix in total; 2 of them changed cupsd_client_s.
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

scheduler/client.h on GitHub (opens in a new tab)
All patched functions in OpenPrinting/cups
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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