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Medium, CVSS 6.9amended

Elastic APM agent for Python client CGI proxy redirection flaw

CVE-2019-7617GHSA-22jh-6gx8-f944

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (elastic-apm 5.1.0), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N · score source
EPSS
  • CVE-2019-7617: 1.51% estimated exploitation activity in the next 30 days; percentile 74.47 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

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.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-22jh-6gx8-f944

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-22jh-6gx8-f944

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2019-7617

Advisory: Elastic APM agent for Python client CGI proxy redirection flaw
IDs: CVE-2019-7617, GHSA-22jh-6gx8-f944
Record: https://patchnext.com/advisories/cve-2019-7617 (revision 3, source checked 26 Oct 2026, 13:17 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: elastic-apm 5.1.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI elastic-apm: affected < 5.1.0; fixed in 5.1.0

## Suggested inspection (read-only)
- `python -m pip show elastic-apm`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on elastic-apm.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-22jh-6gx8-f944 (OSV record GHSA-22jh-6gx8-f944 lists affected ranges: PyPI elastic-apm >=0 <5.1.0 (fixed))
- Verified: https://github.com/advisories/GHSA-22jh-6gx8-f944 (GitHub-reviewed advisory GHSA-22jh-6gx8-f944 lists affected ranges: PyPI elastic-apm >=0 <5.1.0)

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