UPSTREAM FIX

magento2-40657: Varnish VCL pipes PATCH requests instead of passing them to the backend

Community fix magento2-40657 merged into magento/magento2 on 2026-07-28, not in a release yet; applies cleanly to 7 releases from 2.4.8 to 2.4.9.

Varnish VCL pipes PATCH requests instead of passing them to the backend edited

Pull request title
fix(pagecache): recognize PATCH as valid HTTP method in Varnish VCL
Pull request
magento/magento2#40657
Issues
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Author
@lbajsarowicz
Merged
2026-07-28
Fixed in
no release yet
Reported on
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Categories
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Components
magento/module-page-cache

Labels

Area
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Component
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Priority
—
Severity
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Reported on (labels)
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Issue

Title and steps come from the upstream issue and pull request.

The upstream issue and pull request have no structured description.

Code match per tag

Each tag was checked with git apply --check against that tag's files. A clean match means the change applies; it is not a test result. Tags that already contain the fix are marked.

LineCode match per tagTests
2.4.6
2.4.6 file-missing 2.4.6-p1 file-missing 2.4.6-p2 file-missing 2.4.6-p3 file-missing 2.4.6-p4 file-missing 2.4.6-p5 file-missing 2.4.6-p6 file-missing 2.4.6-p7 file-missing 2.4.6-p8 file-missing 2.4.6-p9 file-missing 2.4.6-p10 file-missing 2.4.6-p11 file-missing 2.4.6-p12 file-missing 2.4.6-p13 file-missing 2.4.6-p14 file-missing 2.4.6-p15 file-missing
2.4.6: no test data 2.4.6-p1: no test data 2.4.6-p2: no test data 2.4.6-p3: no test data 2.4.6-p4: no test data 2.4.6-p5: no test data 2.4.6-p6: no test data 2.4.6-p7: no test data 2.4.6-p8: no test data 2.4.6-p9: no test data 2.4.6-p10: no test data 2.4.6-p11: no test data 2.4.6-p12: no test data 2.4.6-p13: no test data 2.4.6-p14: no test data 2.4.6-p15: no test data
2.4.7
2.4.7 file-missing 2.4.7-p1 file-missing 2.4.7-p2 file-missing 2.4.7-p3 file-missing 2.4.7-p4 file-missing 2.4.7-p5 file-missing 2.4.7-p6 file-missing 2.4.7-p7 file-missing 2.4.7-p8 file-missing 2.4.7-p9 file-missing 2.4.7-p10 file-missing
2.4.7: no test data 2.4.7-p1: no test data 2.4.7-p2: no test data 2.4.7-p3: no test data 2.4.7-p4: no test data 2.4.7-p5: no test data 2.4.7-p6: no test data 2.4.7-p7: no test data 2.4.7-p8: no test data 2.4.7-p9: no test data 2.4.7-p10: no test data
2.4.8
2.4.8 clean 2.4.8-p1 clean 2.4.8-p2 clean 2.4.8-p3 clean 2.4.8-p4 clean 2.4.8-p5 clean
2.4.8: no test data 2.4.8-p1: no test data 2.4.8-p2: no test data 2.4.8-p3: no test data 2.4.8-p4: no test data 2.4.8-p5: no test data
2.4.9
2.4.9 clean
2.4.9: no test data

Triage

Model @cf/cloudflare/clef. Probability this is a bug fix: 88.8%. Probability it is security relevant: 1.2%.

Show the model's answers and probabilities
QuestionAnswerProbabilitiesConfidence
Change kindbugfixbugfix 86.9%, feature 8.0%, cleanup 2.1%, refactor 1.5%, dependency 0.6%, tests_only 0.5%, docs_only 0.5%72.2%
Areaframeworkframework 80.2%, graphql_api 6.9%, other 6.2%60.4%
Reported versionunspecifiedunspecified 16.8%, 2.4.6 6.1%, 2.4.8 4.3%3.2%
Scope0.33 of 20 73.8%, 1 19.4%, 2 6.9%38.0%
Risk0.32 of 20 72.4%, 1 23.2%, 2 4.4%36.9%
Worth backporting1.66 of 22 71.5%, 1 22.5%, 0 6.0%34.9%

Download

For cweagans/composer-patches, choose a version below and download the bundle. Copy its magento2-40657/ folder into patches/composer/, merge composer.patches.json into composer.json, then run composer install. Test files are always removed; paths are relative to each package root, using the default -p1 level.

Packages (1): magento/module-page-cache
Bundle README (what the ZIP ships)
# magento2-40657

Community fix merged upstream into magento/magento2, adapted by magento.watch.
This is not a patch published by Adobe.

Pull request: https://github.com/magento/magento2/pull/40657
Author: @lbajsarowicz
Source commit: 8a3e07ac01e6f4819070a097ef7c44b663b9aec1
Modifications: test files and documentation removed, paths rewritten relative to each Composer package.
Licence: OSL-3.0 / AFL-3.0, as the original Magento Open Source code.
Maintainer: Łukasz Bajsarowicz (@lbajsarowicz)

Licence: Magento Open Source code under OSL-3.0 and AFL-3.0. The bundle carries the original author, source commit and the list of modifications.

Sources

Łukasz Bajsarowicz
Built by

Łukasz Bajsarowicz, e-commerce architect

Magento and Adobe Commerce architecture, upgrades, performance and audits for merchants and agencies since 2015; magento.watch is the tooling I use on those projects.

Open source, maintained on weekends.