Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
☕
☕ Maven
Not in CISA KEV
HIGH severity

Gadget chain attack in NippyGHSA-p5gm-fgfx-hr7h

HIGHFix: ptaoussanis/nippy@61fb009

GHSA-p5gm-fgfx-hr7h is a high-severity (CVSS 7.8) Deserialization of Untrusted Data vulnerability in com.taoensso:nippy. A fix is available for com.taoensso:nippy — see the affected versions and patch details below.

Also known asCVE-2020-24164
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs65th percentile — riskier than 65% of all scored CVEsHighest risk
0.61%0.95%1.28%1.61%1.1%1.1%Aug 26Oct 26

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

How urgent is this, really

GHSA-p5gm-fgfx-hr7h by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,987 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
☕com.taoensso:nippy

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

Description

A deserialization flaw is present in Taoensso Nippy before 2.14.2. In some circumstances, it is possible for an attacker to create a malicious payload that, when deserialized, will allow arbitrary code to be executed. This occurs because there is automatic use of the Java Serializable interface.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavencom.taoensso:nippyall versions2.14.2com.taoensso:nippy:2.14.2

Affected Products

1 product · 1 configurations
Application
nippytaoensso
< 2.14.2
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 com.taoensso:nippy, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update com.taoensso:nippy to 2.14.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-p5gm-fgfx-hr7h is resolved across your whole dependency graph.

  3. Workarounds

    Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.

Frequently Asked Questions

A deserialization flaw is present in Taoensso Nippy before 2.14.2. In some circumstances, it is possible for an attacker to create a malicious payload that, when deserialized, will allow arbitrary code to be executed. This occurs because there is automatic use of the Java Serializable interface.
O3 Security · Impact-Aware SCA

Is GHSA-p5gm-fgfx-hr7h in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works
Gadget chain attack in Nippy (High 7.8)