# CVE-2023-39325: GO-2023-2102 - HTTP/2 rapid reset can cause excessive work in net/http

Source: https://junglewise.ai/threats/cve-2023-39325-http-2-rapid-reset-can-cause-excessive-work-in-net-http  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-10-11  
License: CC BY 4.0 with a link back

CVE-2023-39325 · Severity: low · CVSS 3.1 · Published 2023-10-11

HTTP/2 rapid reset can cause excessive work in net/http

Technologies: [golang.org/x/net (Go)](https://junglewise.ai/threats/technologies/golang-org-x-net), [stdlib (Go)](https://junglewise.ai/threats/technologies/go-stdlib). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2023-39325 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-39325 being exploited in the wild.

**How severe is CVE-2023-39325?** Low severity, with a CVSS score of 3.1, published 11 October 2023.

**Which products and versions are affected?** golang.org/x/net (Go) SEMVER:introduced=0,fixed=0.17.0; stdlib (Go) SEMVER:introduced=0,fixed=1.20.10,introduced=1.21.0-0,fixed=1.21.3.

**Is there a fix for CVE-2023-39325?** Yes. golang.org/x/net (Go): upgrade to 0.17.0 or later; stdlib (Go): upgrade to 1.21.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2023-39325?** Check whether you run golang.org/x/net (Go) or stdlib (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- golang.org/x/net (Go): upgrade to 0.17.0 or later

  ```sh
  go get golang.org/x/net@v0.17.0
  ```

- stdlib (Go): upgrade to 1.21.3 or later

  ```sh
  go get stdlib@v1.21.3
  ```


## Affected products

- golang.org/x/net (Go) SEMVER:introduced=0,fixed=0.17.0
- stdlib (Go) SEMVER:introduced=0,fixed=1.20.10,introduced=1.21.0-0,fixed=1.21.3

## Identifiers

- CVE-2023-39325
- GHSA-4374-p667-p6c8
- GO-2023-2102

## Related threats

- [Go HTTP/1 server race condition in MaxBytesReader header handling](https://junglewise.ai/threats/cve-2026-97054-for-http-1-servers-when-maxbytesreader-s-limit-is-exceeded)
- [Go html parser namespace handling in childTextNodesAreLiteral](https://junglewise.ai/threats/cve-2026-97045-in-childtextnodesareliteral-walking-up-the-tree-previously)
- [Go HTML parser quadratic time complexity in text node coalescing](https://junglewise.ai/threats/cve-2026-78661-when-coalescing-adjacent-text-nodes-in-addtext-and-fosterparent)
- [Go crypto/x509 untrusted intermediate certificate validation](https://junglewise.ai/threats/cve-2026-111943-on-most-platforms-go-uses-the-given-system-root-certificates)
- [Go crypto/tls malformed ECH extension DoS](https://junglewise.ai/threats/cve-2026-97031-go-2026-6607-reject-malformed-ech-outer-extension-references-in)
