How severe is GHSA-5r5w-h76p-m726?

No CVSS score has been assigned to GHSA-5r5w-h76p-m726 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-5r5w-h76p-m726?

GHSA-5r5w-h76p-m726 affects the following packages: github.com/foxcpp/maddy (Go). Ecosystems affected: Go.

How do I fix GHSA-5r5w-h76p-m726?

Update github.com/foxcpp/maddy to 0.5.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-5r5w-h76p-m726 is resolved across your whole dependency graph.

How do I detect GHSA-5r5w-h76p-m726 in my Go dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/foxcpp/maddy, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-5r5w-h76p-m726 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against GHSA-5r5w-h76p-m726?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-5r5w-h76p-m726 can be triaged on real exposure rather than presence alone.

Is GHSA-5r5w-h76p-m726 actively exploited in the wild?

No public exploit code has been indexed for GHSA-5r5w-h76p-m726 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-5r5w-h76p-m726?

GHSA-5r5w-h76p-m726 has an EPSS (Exploit Prediction Scoring System) score of 0.7%, placing it in the 53th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-5r5w-h76p-m726?

GHSA-5r5w-h76p-m726 is classified as Broken Cryptographic Algorithm (CWE-327). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-5r5w-h76p-m726 published, and has it been updated?

GHSA-5r5w-h76p-m726 was published on January 6, 2022 and was last updated on August 21, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹 Go

Not in CISA KEV

GHSA-5r5w-h76p-m726 — maddy

GHSA-5r5w-h76p-m726 is a Broken Cryptographic Algorithm vulnerability in github.com/foxcpp/maddy. A fix is available for github.com/foxcpp/maddy — see the affected versions and patch details below.

Use of a Broken or Risky Cryptographic Algorithm in Max Mazurov Maddy

Also known asCVE-2021-42583GO-2022-0306

Published

Jan 6, 2022

Updated

Aug 21, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Sep 22, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

0.7%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs53th percentile — riskier than 53% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

1 pkg affected

🐹github.com/foxcpp/maddy

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

A Broken or Risky Cryptographic Algorithm exists in Max Mazurov Maddy before 0.5.2, which is an unnecessary risk that may result in the exposure of sensitive information.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`github.com/foxcpp/maddy`	all versions	0.5.2`go get github.com/foxcpp/maddy@v0.5.2`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/foxcpp/maddy, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/foxcpp/maddy to 0.5.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-5r5w-h76p-m726 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-5r5w-h76p-m726 can be triaged on real exposure rather than presence alone.

Tailored to GHSA-5r5w-h76p-m726. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A Broken or Risky Cryptographic Algorithm exists in Max Mazurov Maddy before 0.5.2, which is an unnecessary risk that may result in the exposure of sensitive information.

O3 Security · Impact-Aware SCA

Is GHSA-5r5w-h76p-m726 in your dependencies?

O3 Security finds GHSA-5r5w-h76p-m726 across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works