# CVE-2022-41715: Memory exhaustion when compiling regular expressions in regexp/syntax > Attackers can cause memory exhaustion and denial of service by providing specially crafted regular expressions to applications using the Go regexp/syntax package. - **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 14 Oct 2022 - **Updated:** 13 Feb 2025 - **Also known as:** ALSA-2023:2592, AZL-11130, AZL-37407, AZL-78964, AZL-98745, BIT-golang-2022-41715, DEBIAN-CVE-2022-41715, GHSA-5wvm-rxcf-6cg8, GO-2022-1039, RHSA-2023:2592, UBUNTU-CVE-2022-41715, openSUSE-SU-2024:13604-1 ## What is CVE-2022-41715? CVE-2022-41715 is a high-severity denial of service vulnerability in Golang Go, published on 14 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion or denial of service. The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are rejected. Normal use of regular expressions is unaffected. ## Which versions are affected by CVE-2022-41715? 2 open source packages ship an affected version, including golang and stdlib. It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `golang` | Bitnami | All versions | 1.18.7, 1.19.2 | | `stdlib` | Go | All versions | 1.18.7, 1.19.2 | | `golang-github-cpuguy83-md2man` | AlmaLinux:9 | All versions | 2.0.2-4.el9 | | `golang-github-cpuguy83-md2man` | Red Hat:enterprise_linux:9::crb | All versions | 0:2.0.2-4.el9 | | `golang-github-cpuguy83-md2man-debuginfo` | Red Hat:enterprise_linux:9::crb | All versions | 0:2.0.2-4.el9 | | `golang-github-cpuguy83-md2man-debugsource` | Red Hat:enterprise_linux:9::crb | All versions | 0:2.0.2-4.el9 | | `golang-github-prometheus-prometheus` | openSUSE:Tumbleweed | All versions | 2.48.1-2.1 | Products: Golang Go. ## How do I fix CVE-2022-41715? Upgrade golang to a fixed version for your release line: 1.18.7 or 1.19.2. ## Is CVE-2022-41715 being exploited? There is no known exploitation of CVE-2022-41715 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-2022-41715 and fix it if it is affected. What it is: CVE-2022-41715 is a high-severity denial of service vulnerability in Golang Go, published on 14 Oct 2022. 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-2022-41715 in the wild and no public exploit code. Affected packages and fixed versions: - golang (Bitnami): affected all versions; fixed in 1.18.7, 1.19.2 - stdlib (Go): affected all versions; fixed in 1.18.7, 1.19.2 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-2022-41715/ (Markdown: https://insights.sbomify.com/CVE-2022-41715/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2022-41715 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-41715 - OSV: https://osv.dev/vulnerability/CVE-2022-41715 --- From sbomify Insights: https://insights.sbomify.com/CVE-2022-41715/ Summaries are generated and may contain mistakes; the official description above is the record.