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HIGH severity

Denial of Service via malformed accept-encoding header in hapiGHSA-cqjg-whmm-8gv6

HIGH

GHSA-cqjg-whmm-8gv6 is a high-severity (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in hapi. A fix is available for hapi — see the affected versions and patch details below.

Also known asCVE-2017-16013
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 13, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.6%probability of exploitation in next 30 days
Lower Risk-0.03%
Lower risk than most CVEs75th percentile — riskier than 75% of all scored CVEsHighest risk
0.00%0.69%1.39%2.08%0.3%1.6%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

GHSA-cqjg-whmm-8gv6 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 386,684 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.

hapinpm
57Kdownloads / week

Description

hapi is a web and services application framework. When hapi >= 15.0.0 <= 16.1.0 encounters a malformed accept-encoding header an uncaught exception is thrown. This may cause hapi to crash or to hang the client connection until the timeout period is reached.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmhapi≥ 15.0.0&&< 16.1.116.1.1npm install hapi@16.1.1

Affected Products

1 product · 1 configurations
Application
hapihapijs
≥ 15.0.0 && ≤ 16.1.0
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update hapi to 16.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cqjg-whmm-8gv6 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

Affected versions of `hapi` will crash or lock the event loop when a malformed `accept-encoding` header is recieved. ## Recommendation Update to version 16.1.1 or later.
O3 Security · Impact-Aware SCA

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Denial of Service via malformed accept-encoding header…