CVE-2025-47910 CrossOriginProtection insecure bypass patterns not limited to exact matches in net/http
Medium 5.4
Published
Updated
Check this codebase for CVE-2025-47910 and fix it if it is affected.
What it is: CVE-2025-47910 is a medium-severity vulnerability in Go standard library net/http, published on 22 Sep 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-47910 in the wild and no public exploit code.
Affected packages and fixed versions:
- golang (Bitnami): affected from 1.25.0; fixed in 1.25.1
- stdlib (Go): affected from 1.25.0; fixed in 1.25.1
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2025-47910/ (Markdown: https://insights.sbomify.com/CVE-2025-47910/index.md)
Developers using Go's CrossOriginProtection may inadvertently bypass security checks due to insecure bypass patterns, exposing endpoints to unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-47910?
CVE-2025-47910 is a medium-severity vulnerability in Go standard library net/http, published on 22 Sep 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
When using http.CrossOriginProtection, the AddInsecureBypassPattern method can unexpectedly bypass more requests than intended. CrossOriginProtection then skips validation, but forwards the original request path, which may be served by a different handler without the intended security protections.
Which versions are affected by CVE-2025-47910?
2 open source packages ship an affected version, including golang and stdlib.
| Package | Affected | Fixed in |
|---|---|---|
golang Bitnami | From 1.25.0 | 1.25.1 |
stdlib Go | From 1.25.0 | 1.25.1 |
Linux distribution packages (32)
go1.25 SUSE:Enterprise Storage 7.1 | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Enterprise Storage 7.1 | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise Module for Development Tools 15 SP6 | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise Module for Development Tools 15 SP6 | All versions | 1.25.1-150600.13.6.1 |
go1.25 SUSE:Linux Enterprise Module for Development Tools 15 SP7 | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise Module for Development Tools 15 SP7 | All versions | 1.25.1-150600.13.6.1 |
go1.25 SUSE:Linux Enterprise Server 15 SP3-LTSS | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise Server 15 SP3-LTSS | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise Server 15 SP4-LTSS | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise Server 15 SP4-LTSS | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise Server 15 SP5-LTSS | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise Server 15 SP5-LTSS | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | All versions | 1.25.1-150000.1.6.1 |
go1.25 SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | All versions | 1.25.1-150000.1.6.1 |
go1.25 openSUSE:Leap 15.6 | All versions | 1.25.1-150000.1.8.1 |
go1.25-openssl openSUSE:Leap 15.6 | All versions | 1.25.1-150600.13.6.1 |
go1.25 openSUSE:Tumbleweed | All versions | 1.25.1-1.1 |
govulncheck-vulndb openSUSE:Tumbleweed | All versions | 0.0.20250922T204835-1.1 |
How do I fix CVE-2025-47910?
Upgrade golang to 1.25.1 or later.
Is CVE-2025-47910 being exploited?
There is no known exploitation of CVE-2025-47910 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-47910, BIT-golang-2025-47910, CLEANSTART-2026-NH57392, DEBIAN-CVE-2025-47910, ECHO-4b0c-aa52-8cd0, GHSA-8pjc-487g-w6p2 and 151 more.