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🐍 PyPI
Not in CISA KEV
HIGH severity

CVE-2019-7617 — elastic-apm

HIGH

CVE-2019-7617 is a high-severity (CVSS 7.2) Improper Input Validation vulnerability in elastic-apm. A fix is available for elastic-apm — see the affected versions and patch details below.

Elastic APM agent for Python client CGI proxy redirection flaw

Also known asGHSA-22jh-6gx8-f944PYSEC-2019-178
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs74th percentile — riskier than 74% of all scored CVEsHighest risk
0.00%0.67%1.34%2.01%0.2%1.5%May 26Sep 26Nov 26

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐍elastic-apm

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

Description

When the Elastic APM agent for Python versions before 5.1.0 is run as a CGI script, there is a variable name clash flaw if a remote attacker can control the proxy header. This could result in an attacker redirecting collected APM data to a proxy of their choosing.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIelastic-apmall versions5.1.0pip install --upgrade 'elastic-apm==5.1.0'

Affected Products

1 product · 1 configurations
Application
apm agentelastic
< 5.1.0
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 elastic-apm, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update elastic-apm to 5.1.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-7617 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.

Frequently Asked Questions

When the Elastic APM agent for Python versions before 5.1.0 is run as a CGI script, there is a variable name clash flaw if a remote attacker can control the proxy header. This could result in an attacker redirecting collected APM data to a proxy of their choosing.
O3 Security · Impact-Aware SCA

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CVE-2019-7617: elastic-apm — Fixed in 5.1.0