fix(deps): bump httpclient5 to 5.6.3 for CVE-2026-64607 - #485
Merged
Jan-Kazlouski-elastic merged 5 commits intoAug 28, 2026
Merged
Conversation
Resolves connection leak when Content-Encoding decoding fails in Apache HttpClient 5. Part of elastic/security#13637
erikcurrin-elastic
approved these changes
Aug 26, 2026
Jan-Kazlouski-elastic
enabled auto-merge (squash)
August 28, 2026 08:40
Jan-Kazlouski-elastic
deleted the
jan-kazlouski/13637-cve-2026-64607-fix
branch
August 28, 2026 08:48
Jan-Kazlouski-elastic
added a commit
that referenced
this pull request
Aug 28, 2026
…487) Backports the following commits to 1.0: - fix(deps): bump httpclient5 to 5.6.3 for CVE-2026-64607 (#485) Co-authored-by: Jan-Kazlouski-elastic <jan.kazlouski@elastic.co>
12 tasks
Jan-Kazlouski-elastic
added a commit
that referenced
this pull request
Sep 18, 2026
### Closes #498 Every crawl in the published images failed on its first HTTP request with `NoClassDefFoundError: jdk/net/Sockets`, so nothing was indexed. `Dockerfile.wolfi` builds the runtime JDK with `jlink` and omitted the `jdk.net` module. `httpclient5` 5.6 loads `jdk.net.Sockets` while initializing `DefaultHttpClientConnectionOperator`, so the class was missing at runtime. `1.0.0` still shipped `httpclient5` 5.1, which does not touch that class, so only builds after the 5.6 bump (#485) are affected. Reverting the bump is not an option because it would reopen CVE-2026-64607 and the pinned `httpcore5` CVEs. ### Changes - Add `jdk.net` to the `jlink --add-modules` list in `Dockerfile.wolfi` - Run an actual crawl in `.buildkite/scripts/test-wolfi-image.sh`, so runtime gaps in the trimmed JDK fail CI instead of a published image ### Verification The Wolfi base images require registry auth, so the real image could not be built locally. Instead this was A/B tested on the published `1.0.1-SNAPSHOT` image with the application and `httpclient5` 5.6.3 held constant and only the `jlink` module set swapped: | Module set | Result | |---|---| | without `jdk.net` (current `main`) | `NoClassDefFoundError: jdk/net/Sockets`, 0 pages visited | | with `jdk.net` (this PR) | exit 0, `Finished a crawl. Result: success`, 2 pages visited | `java --describe-module jdk.net` confirms that module exports the `jdk.net` package containing `Sockets`. The updated Wolfi test script was run against both images: it passes on the fixed one and exits non-zero on the broken one, so it does guard this regression. The Wolfi image build itself is still only exercised in CI. ### Checklists #### Pre-Review Checklist - [x] This PR does NOT contain credentials of any kind, such as API keys or username/passwords (double check `crawler.yml.example` and `elasticsearch.yml.example`) - [x] This PR has a meaningful title - [x] This PR links to all relevant GitHub issues that it fixes or partially addresses - If there is no GitHub issue, please create it. Each PR should have a link to an issue - [x] this PR has a thorough description - [x] Covered the changes with automated tests - [x] Tested the changes locally - [x] Added a label for each target release version (example: `v0.1.0`) - [ ] Considered corresponding documentation changes - [ ] Contributed any configuration settings changes to the configuration reference - [ ] Ran `make notice` if any dependencies have been added #### Changes Requiring Extra Attention - [ ] Security-related changes (encryption, TLS, SSRF, etc) - [ ] New external service dependencies added. Adds one JDK module to the runtime image, which slightly increases image size. It keeps `httpclient5` 5.6.3 and its CVE fixes in place. ### Related Pull Requests * #485 ### Release Note Fixed crawls failing immediately with `NoClassDefFoundError: jdk/net/Sockets` in the Docker images.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Part of https://github.com/elastic/security/issues/13637
Bump
org.apache.httpcomponents.client5:httpclient5from 5.6.2 to 5.6.3 to resolve CVE-2026-64607 (connection leak whenContent-Encodingdecoding fails in Apache HttpClient 5).Scanner A/B (
CVE-2026-64607)Baseline:
httpclient55.6.2 → 5.6.3 (Maven jar).Method: Snyk jar scan on
httpclient5-5.6.2.jarvshttpclient5-5.6.3.jar.1/1 CVE: reported → clear. Container re-publish +
snyk container monitorstill needed for dashboard refresh.Checklists
Pre-Review Checklist
crawler.yml.exampleandelasticsearch.yml.example)make install-gems,make install-jars,make lint,make test— 690 examples, 0 failures)v0.1.0)make noticeif any dependencies have been addedChanges Requiring Extra Attention
Related Pull Requests
N/A
Release Note
Bump httpclient5 to 5.6.3 to fix CVE-2026-64607 (connection leak on bad Content-Encoding).