How many CVEs have patched checkArrowFunction?

4 published CVEs changed checkArrowFunction in craftcms/cms, in 4 distinct patches totalling 62 changed lines, between 2025 and 2026.

What is the latest CVE that changed checkArrowFunction?

CVE-2026-28784 (Craft is affected by potential authenticated Remote Code Execution via Twig SSTI), published 2026-03-04, changed lines 111 to 115 of src/web/twig/Extension.php.

How does checkArrowFunction compare to the rest of craftcms/cms?

craftcms/cms has 103 CVEs with a located fix in total; 4 of them changed checkArrowFunction.

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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craftcms/cms

Function

checkArrowFunction

Name: checkArrowFunction in craftcms/cms: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

src/web/twig/Extension.php

Last patched March 4, 2026

4

CVEs

That changed this function

4

Distinct patches

Backports counted once

62

Lines changed

Added plus removed

2025–2026

Years

By CVE publication date

Overview

checkArrowFunction in craftcms/cms was changed by 4 published CVE fixes between 2025 and 2026, in 4 distinct patches that added or removed 62 lines in total.

craftcms/cms has 103 CVEs with a located fix in total, so 4% of them touched this function.

CVEs that patched it

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

Craft is affected by potential authenticated Remote Code Execution via Twig SSTI
CVE-2026-28784 · lines 111–115 · +1 −29
High · CVSS 8.6
EPSS 0.7%2026-03-04
Craft has a Twig Function Blocklist Bypass
CVE-2026-28783 · lines 111–115 · +1 −29
Critical · CVSS 9.4
EPSS 0.6%2026-03-04
Craft Potential Remote Code Execution via Twig SSTI
CVE-2025-57811 · line 125 · +1 −0
Medium · CVSS 6.6
EPSS 0.9%2025-08-25
Craft CMS Contains a Potential Remote Code Execution Vulnerability via Twig SSTI
CVE-2025-46731 · line 124 · +1 −0
High · CVSS 7.3
EPSS 1.5%2025-05-05

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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 craftcms/cms changed by the most CVE fixes.

handleUpload5 CVEs · src/gql/resolvers/mutations/Asset.php actionReplaceFile4 CVEs · src/controllers/AssetsController.php validateHostname3 CVEs · src/gql/resolvers/mutations/Asset.php actionResourceJs3 CVEs · src/controllers/AppController.php actionGenerateTransform3 CVEs · src/controllers/AssetsController.php groupFilter3 CVEs · src/web/twig/Extension.php

All patched functions in craftcms/cms

Frequently asked questions

Common questions about CVE fixes to checkArrowFunction.

How many CVEs have patched checkArrowFunction?: 4 published CVEs changed checkArrowFunction in craftcms/cms, in 4 distinct patches totalling 62 changed lines, between 2025 and 2026.
What is the latest CVE that changed checkArrowFunction?: CVE-2026-28784 (Craft is affected by potential authenticated Remote Code Execution via Twig SSTI), published 2026-03-04, changed lines 111 to 115 of src/web/twig/Extension.php.
How does checkArrowFunction compare to the rest of craftcms/cms?: craftcms/cms has 103 CVEs with a located fix in total; 4 of them changed checkArrowFunction.
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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