# CVE-2022-1586: Memory corruption in pcre2

> An out-of-bounds read in PCRE2's JIT compiler allows attackers to cause denial of service or disclose sensitive memory contents via crafted regex patterns.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:** 16 May 2022
- **Updated:** 6 Mar 2025
- **Also known as:** ALPINE-CVE-2022-1586, ALSA-2022:5809, CLEANSTART-2024-KR97455, DEBIAN-CVE-2022-1586, GHSA-f3pv-9fwh-mp3x, RHSA-2022:5809, RLSA-2022:5809, SUSE-RU-2022:1883-1, SUSE-SU-2022:1836-1, SUSE-SU-2022:1883-1, SUSE-SU-2022:2334-1, SUSE-SU-2022:2360-1, SUSE-SU-2022:2361-1, UBUNTU-CVE-2022-1586, openSUSE-SU-2022:2361-1

## What is CVE-2022-1586?

CVE-2022-1586 is a critical memory corruption vulnerability in Debian Debian Linux, published on 16 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An out-of-bounds read vulnerability was discovered in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This involves a unicode property matching issue in JIT-compiled regular expressions. The issue occurs because the character was not fully read in case-less matching within JIT.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2022-1586?

It affects 13 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `pcre2` | AlmaLinux:8 | All versions | 10.32-3.el8_6 |
| `pcre2-devel` | AlmaLinux:8 | All versions | 10.32-3.el8_6 |
| `pcre2-tools` | AlmaLinux:8 | All versions | 10.32-3.el8_6 |
| `pcre2-utf16` | AlmaLinux:8 | All versions | 10.32-3.el8_6 |
| `pcre2-utf32` | AlmaLinux:8 | All versions | 10.32-3.el8_6 |
| `pcre2` | Red Hat:enterprise_linux:8::baseos | All versions | 0:10.32-3.el8_6 |
| `pcre2-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 0:10.32-3.el8_6 |
| `pcre2-debugsource` | Red Hat:enterprise_linux:8::baseos | All versions | 0:10.32-3.el8_6 |
| `pcre2-devel` | Red Hat:enterprise_linux:8::baseos | All versions | 0:10.32-3.el8_6 |
| `pcre2-tools-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 0:10.32-3.el8_6 |
| `pcre2-utf16` | Red Hat:enterprise_linux:8::baseos | All versions | 0:10.32-3.el8_6 |
| `pcre2-utf16-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 0:10.32-3.el8_6 |
| `pcre2-utf32` | Red Hat:enterprise_linux:8::baseos | All versions | 0:10.32-3.el8_6 |
| `pcre2-utf32-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 0:10.32-3.el8_6 |
| `pcre2-debuginfo` | Red Hat:enterprise_linux:8::crb | All versions | 0:10.32-3.el8_6 |
| `pcre2-debugsource` | Red Hat:enterprise_linux:8::crb | All versions | 0:10.32-3.el8_6 |
| `pcre2-tools` | Red Hat:enterprise_linux:8::crb | All versions | 0:10.32-3.el8_6 |
| `pcre2-tools-debuginfo` | Red Hat:enterprise_linux:8::crb | All versions | 0:10.32-3.el8_6 |
| `pcre2-utf16-debuginfo` | Red Hat:enterprise_linux:8::crb | All versions | 0:10.32-3.el8_6 |
| `pcre2-utf32-debuginfo` | Red Hat:enterprise_linux:8::crb | All versions | 0:10.32-3.el8_6 |
| `pcre2` | Rocky Linux:8 | All versions | 0:10.32-3.el8_6 |
| `pcre` | SUSE:Enterprise Storage 6 | All versions | 8.45-150000.20.13.1 |
| `pcre2` | SUSE:Enterprise Storage 6 | All versions | 10.31-150000.3.7.1 |
| `pcre` | SUSE:Enterprise Storage 7 | All versions | 8.45-150000.20.13.1 |
| `pcre2` | SUSE:Enterprise Storage 7 | All versions | 10.31-150000.3.7.1 |
| `pcre` | SUSE:HPE Helion OpenStack 8 | All versions | 8.45-8.12.1 |
| `pcre2` | SUSE:HPE Helion OpenStack 8 | All versions | 10.34-1.7.1 |
| `pcre` | SUSE:Linux Enterprise High Availability Extension 12 SP3 | All versions | 8.45-8.12.1 |
| `pcre` | SUSE:Linux Enterprise High Availability Extension 12 SP4 | All versions | 8.45-8.12.1 |
| `pcre` | SUSE:Linux Enterprise High Availability Extension 12 SP5 | All versions | 8.45-8.12.1 |
| `pcre` | SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS | All versions | 8.45-150000.20.13.1 |
| `pcre2` | SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS | All versions | 10.31-150000.3.7.1 |
| `pcre` | SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | All versions | 8.45-150000.20.13.1 |
| `pcre2` | SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | All versions | 10.31-150000.3.7.1 |
| `pcre` | SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS | All versions | 8.45-150000.20.13.1 |
| `pcre2` | SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS | All versions | 10.31-150000.3.7.1 |
| `pcre` | SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | All versions | 8.45-150000.20.13.1 |
| `pcre2` | SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | All versions | 10.31-150000.3.7.1 |
| `pcre` | SUSE:Linux Enterprise High Performance Computing 15-ESPOS | All versions | 8.45-150000.20.13.1 |
| `pcre2` | SUSE:Linux Enterprise High Performance Computing 15-ESPOS | All versions | 10.31-150000.3.7.1 |

Products: Debian Debian Linux, Fedoraproject Fedora, Netapp Active Iq Unified Manager, Netapp H300s Firmware, Netapp H410c Firmware, Netapp H410s Firmware, Netapp H500s Firmware, Netapp H700s Firmware, Netapp Hci Management Node, Netapp Ontap Select Deploy Administration Utility, Netapp Solidfire, Pcre Pcre2, Redhat Enterprise Linux.

## How do I fix CVE-2022-1586?

Apply the vendor's patch.

## Is CVE-2022-1586 being exploited?

There is no known exploitation of CVE-2022-1586 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-1586 and fix it if it is affected.

What it is: CVE-2022-1586 is a critical memory corruption vulnerability in Debian Debian Linux, published on 16 May 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-2022-1586 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2022-1586/ (Markdown: https://insights.sbomify.com/CVE-2022-1586/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-1586
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-1586
- OSV: https://osv.dev/vulnerability/CVE-2022-1586

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-1586/
Summaries are generated and may contain mistakes; the official description above is the record.