Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
🐍
🐍 PyPI
Not in CISA KEV
MEDIUM severity

GHSA-p44j-xrqg-4xrr is a medium-severity (CVSS 5.7) Open Redirect vulnerability in products-pluggableauthservice. 2 public exploit references exist, so weaponization risk is real. O3 Security confirms whether GHSA-p44j-xrqg-4xrr is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

URL Redirection to Untrusted Site ('Open Redirect') in Products.PluggableAuthService

Also known asCVE-2021-21337PYSEC-2021-45
Published
Mar 8, 2021
Updated
Jul 8, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
2 known
Exploitation data as of Jul 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐍products-pluggableauthservice

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

Impact

What kind of vulnerability is it? Who is impacted?

Open redirect vulnerability - a maliciously crafted link to the login form and login functionality could redirect the browser to a different website.

Patches

Has the problem been patched? What versions should users upgrade to?

The problem has been fixed in version 2.6.1. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to 2.6.1 and re-run the buildout, or if you used pip simply do pip install "Products.PluggableAuthService>=2.6.1"

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

There is no workaround. Users are encouraged to upgrade.

References

Are there any links users can visit to find out more?

For more information

If you have any questions or comments about this advisory:

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIproducts-pluggableauthserviceall versions2.6.1
Exploits & PoCs
2

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-49930webappspython

Products.PluggableAuthService 2.6.0 - Open Redirect

by Piyush Patil · Jun 2, 2021

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for products-pluggableauthservice. 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 products-pluggableauthservice to 2.6.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-p44j-xrqg-4xrr 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-p44j-xrqg-4xrr 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-p44j-xrqg-4xrr. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact _What kind of vulnerability is it? Who is impacted?_ Open redirect vulnerability - a maliciously crafted link to the login form and login functionality could redirect the browser to a different website. ### Patches _Has the problem been patched? What versions should users upgrade to?_ The problem has been fixed in version 2.6.1. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to `2.6.1` and re-run the buildout, or if you used `pip` simply do `pip install "Products.PluggableAuthService>=2.6.1"` ### Workarounds _Is the
O3 Security · Impact-Aware SCA

Is GHSA-p44j-xrqg-4xrr in your dependencies?

O3 detects GHSA-p44j-xrqg-4xrr across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.