How severe is GHSA-65p8-3hm4-h9h8?

GHSA-65p8-3hm4-h9h8 has a CVSS score of 6.5/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by GHSA-65p8-3hm4-h9h8?

GHSA-65p8-3hm4-h9h8 affects the following packages: rgb2hex (npm). Ecosystems affected: npm.

How do I fix GHSA-65p8-3hm4-h9h8?

Update rgb2hex to 0.1.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-65p8-3hm4-h9h8 is resolved across your whole dependency graph.

How do I detect GHSA-65p8-3hm4-h9h8 in my npm dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for rgb2hex. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate GHSA-65p8-3hm4-h9h8 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-65p8-3hm4-h9h8?

O3 pinpoints whether GHSA-65p8-3hm4-h9h8 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-65p8-3hm4-h9h8 actively exploited in the wild?

No public exploit code has been indexed for GHSA-65p8-3hm4-h9h8 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.

When was GHSA-65p8-3hm4-h9h8 published, and has it been updated?

GHSA-65p8-3hm4-h9h8 was published on August 23, 2019 and was last updated on August 17, 2021. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

📦 npm

GHSA-65p8-3hm4-h9h8

MEDIUM

GHSA-65p8-3hm4-h9h8 is a medium-severity (CVSS 6.5) vulnerability in rgb2hex. O3 Security confirms whether GHSA-65p8-3hm4-h9h8 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Denial of Service in rgb2hex

Published

Aug 23, 2019

Updated

Aug 17, 2021

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Blast Radius

1 pkg affected

Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.

rgb2hexnpm

2.1Mdownloads / week

Description

All versions of rgb2hex are vulnerable to Regular Expression Denial of Service (ReDoS) when an attacker can pass in a specially crafted invalid color value.

Recommendation

Update to version 0.1.6 or later.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`rgb2hex`	all versions	0.1.6

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for rgb2hex. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update rgb2hex to 0.1.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-65p8-3hm4-h9h8 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 pinpoints whether GHSA-65p8-3hm4-h9h8 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-65p8-3hm4-h9h8. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

All versions of `rgb2hex` are vulnerable to Regular Expression Denial of Service (ReDoS) when an attacker can pass in a specially crafted invalid color value. ## Recommendation Update to version 0.1.6 or later.

O3 Security · Impact-Aware SCA

Is GHSA-65p8-3hm4-h9h8 in your dependencies?

O3 detects GHSA-65p8-3hm4-h9h8 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works