# CVE-2012-2666: Other in go/golang

> An attacker on a shared machine could execute arbitrary code by exploiting a predictable temporary file name in the Go test suite.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jul 2021
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-259v-fw35-w989

## What is CVE-2012-2666?

CVE-2012-2666 is a critical vulnerability in Golang Go, published on 9 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

golang/go in 1.0.2 fixes all.bash on shared machines. dotest() in src/pkg/debug/gosym/pclntab_test.go creates a temporary file with predicable name and executes it as shell script.

Weakness: CWE-377 (DEPRECATED: Insecure Temporary File)

## Which versions are affected by CVE-2012-2666?

It affects 1 product.


Products: Golang Go.

## How do I fix CVE-2012-2666?

No fix has been published for CVE-2012-2666 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-2666 being exploited?

There is no known exploitation of CVE-2012-2666 in the wild and no public exploit code.

## Other vulnerabilities in Golang Go

- [CVE-2020-0601](https://insights.sbomify.com/CVE-2020-0601/): Microsoft Windows CryptoAPI Spoofing (high 8.1, exploited in the wild)
- [CVE-2026-27143](https://insights.sbomify.com/CVE-2026-27143/): Missing bound checks can lead to memory corruption in safe Go in cmd/compile (critical 9.8)
- [CVE-2024-24790](https://insights.sbomify.com/CVE-2024-24790/): Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip (critical 9.8)
- [CVE-2023-39320](https://insights.sbomify.com/CVE-2023-39320/): Arbitrary code execution via go.mod toolchain directive in cmd/go (critical 9.8)
- [CVE-2023-24540](https://insights.sbomify.com/CVE-2023-24540/): Improper handling of JavaScript whitespace in html/template (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-2666 and fix it if it is affected.

What it is: CVE-2012-2666 is a critical vulnerability in Golang Go, published on 9 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2012-2666 in the wild and no public exploit code.

Affected product: Golang Go. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2012-2666/ (Markdown: https://insights.sbomify.com/CVE-2012-2666/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-2666
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-2666
- OSV: https://osv.dev/vulnerability/CVE-2012-2666

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-2666/
Summaries are generated and may contain mistakes; the official description above is the record.