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Maven
Not in CISA KEV
HIGH severity

GHSA-r679-m633-g7wc

HIGH

GHSA-r679-m633-g7wc is a high-severity (CVSS 7.5) vulnerability in org.apache.shiro:shiro-core. O3 Security confirms whether GHSA-r679-m633-g7wc is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Improper input validation in Apache Shiro

Also known asCVE-2019-12422
Published
Feb 4, 2020
Updated
Dec 5, 2024
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Dec 5, 2024 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
org.apache.shiro:shiro-core

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

Apache Shiro before 1.4.2, when using the default "remember me" configuration, cookies could be susceptible to a padding attack.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.apache.shiro:shiro-coreall versions1.4.2

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.shiro:shiro-core. 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.

  2. Fix

    Update org.apache.shiro:shiro-core to 1.4.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r679-m633-g7wc is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-r679-m633-g7wc 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-r679-m633-g7wc. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Frequently Asked Questions

Apache Shiro before 1.4.2, when using the default "remember me" configuration, cookies could be susceptible to a padding attack.
O3 Security · Impact-Aware SCA

Is GHSA-r679-m633-g7wc in your dependencies?

O3 detects GHSA-r679-m633-g7wc across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-r679-m633-g7wc: Improper input… | O3 Security