How many CVEs have patched Rewrite?

2 published CVEs changed Rewrite in caddyserver/caddy, in 3 distinct patches totalling 22 changed lines, between 2022 and 2026.

What is the latest CVE that changed Rewrite?

CVE-2026-77281 (Caddy: rewrite placeholder re-expansion), published 2026-09-17, changed lines 226 to 234 of modules/caddyhttp/rewrite/rewrite.go.

How does Rewrite compare to the rest of caddyserver/caddy?

caddyserver/caddy has 13 CVEs with a located fix in total; 2 of them changed Rewrite.

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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Rewrite

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Patched Functions
Caddyserver
Caddy
Rewrite

Rewrite in caddyserver/caddy: Patched by 2 CVEs

caddyserver/caddy

Function

Rewrite

Name: Rewrite in caddyserver/caddy: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

modules/caddyhttp/rewrite/rewrite.go

Last patched September 17, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2022–2026

Years

By CVE publication date

Overview

Rewrite in caddyserver/caddy was changed by 2 published CVE fixes between 2022 and 2026, in 3 distinct patches that added or removed 22 lines in total.

caddyserver/caddy 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 Rewrite, newest first, with the lines each fix touched.

On this page

Overview
CVEs that patched it
Other hotspots in the repository
FAQ
References

Caddy: rewrite placeholder re-expansion
CVE-2026-77281 · lines 226–234 · +9 −0
Medium · CVSS 6.5
EPSS 0.5%2026-09-17
Withdrawn Advisory: Out-of-bounds Read can lead to client side denial of service
CVE-2022-34037 · lines 138–151 · +10 −3
High · CVSS 7.5
EPSS 1.2%2022-07-22

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Monitor caddy CVEs

Other hotspots in the repository

Functions in caddyserver/caddy changed by the most CVE fixes.

trapSignalsPosix2 CVEs · sigtrap_posix.go serveHTTP2 CVEs · caddyhttp/httpserver/server.go assertConfigsCompatible2 CVEs · caddytls/config.go parseCaddyfile1 CVEs · modules/caddyhttp/reverseproxy/forwardauth/caddyfile.go getCertificate1 CVEs · caddytls/handshake.go getConfig1 CVEs · caddytls/handshake.go

All patched functions in caddyserver/caddy

Frequently asked questions

Common questions about CVE fixes to Rewrite.

How many CVEs have patched Rewrite?: 2 published CVEs changed Rewrite in caddyserver/caddy, in 3 distinct patches totalling 22 changed lines, between 2022 and 2026.
What is the latest CVE that changed Rewrite?: CVE-2026-77281 (Caddy: rewrite placeholder re-expansion), published 2026-09-17, changed lines 226 to 234 of modules/caddyhttp/rewrite/rewrite.go.
How does Rewrite compare to the rest of caddyserver/caddy?: caddyserver/caddy has 13 CVEs with a located fix in total; 2 of them changed Rewrite.
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

modules/caddyhttp/rewrite/rewrite.go on GitHub (opens in a new tab)
All patched functions in caddyserver/caddy
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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