# CVE-2020-14155: Integer overflow in n/a

> An integer overflow in the PCRE library allows attackers to cause a denial of service via a crafted regex pattern.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 15 Jun 2020
- **Updated:** 8 Oct 2026
- **Also known as:** ALPINE-CVE-2020-14155, BIT-gitlab-2020-14155, DEBIAN-CVE-2020-14155, GHSA-g6g8-99m5-jj82, JLSEC-2026-177, UBUNTU-CVE-2020-14155

## What is CVE-2020-14155?

CVE-2020-14155 is a medium-severity vulnerability in Apple Macos, published on 15 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

libpcre in PCRE before 8.44 allows an integer overflow via a large number after a (?C substring.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2020-14155?

1 open source package ship an affected version, including gitlab. It affects 15 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `gitlab` | Bitnami | All versions | 12.10.13, 13.0.8, 13.1.2 |

Products: Apple Macos, Gitlab Gitlab, Netapp Active Iq Unified Manager, Netapp Cloud Backup, Netapp Clustered Data Ontap, Netapp H300s Firmware, Netapp H410c Firmware, Netapp H410s Firmware, Netapp H500s Firmware, Netapp H700s Firmware, Netapp Ontap Select Deploy Administration Utility, Netapp Steelstore Cloud Integrated Storage, Oracle Communications Cloud Native Core Policy, Pcre Pcre, Splunk Universal Forwarder.

## How do I fix CVE-2020-14155?

Upgrade gitlab to a fixed version for your release line: 12.10.13, 13.0.8 or 13.1.2.

## Is CVE-2020-14155 being exploited?

There is no known exploitation of CVE-2020-14155 in the wild and no public exploit code.

## Other vulnerabilities in Apple Macos

- [CVE-2026-65400](https://insights.sbomify.com/CVE-2026-65400/): Apple macOS Improper Authentication (critical 9.8, exploited in the wild)
- [CVE-2024-44146](https://insights.sbomify.com/CVE-2024-44146/): Security feature bypass in macOS (critical 10.0)
- [CVE-2024-44148](https://insights.sbomify.com/CVE-2024-44148/): Security feature bypass in macOS (critical 10.0)
- [CVE-2023-38586](https://insights.sbomify.com/CVE-2023-38586/): Security feature bypass in macOS (critical 10.0)
- [CVE-2023-40455](https://insights.sbomify.com/CVE-2023-40455/): Security feature bypass in macOS (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-14155 and fix it if it is affected.

What it is: CVE-2020-14155 is a medium-severity vulnerability in Apple Macos, published on 15 Jun 2020. 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-2020-14155 in the wild and no public exploit code.

Affected packages and fixed versions:
- gitlab (Bitnami): affected all versions; fixed in 12.10.13, 13.0.8, 13.1.2

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-2020-14155/ (Markdown: https://insights.sbomify.com/CVE-2020-14155/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-14155
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-14155
- OSV: https://osv.dev/vulnerability/CVE-2020-14155

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-14155/
Summaries are generated and may contain mistakes; the official description above is the record.