CVE-2021-21336 json
Exposure of Sensitive Information to an Unauthorized Actor in Products.PluggableAuthService ZODBRoleManager
published 5y ago modified 4mo ago also GHSA-p75f-g7gx-2r7p , PYSEC-2021-44 , EUVD-2021-0200
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
Products.PluggableAuthService is a pluggable Zope authentication and authorization framework. In Products.PluggableAuthService before version 2.6.0 there is an information disclosure vulnerability - everyone can list the names of roles defined in the ZODB Role Manager plugin if the site uses this plugin. The problem has been fixed in version 2.6.0. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to 2.6.0 and re-run the buildout, or if you used pip simply do `pip install "Products.PluggableAuthService>=2.6.0"`.
Patch / fix
- pypi products-pluggableauthservice 2.6.0
- zope products.pluggableauthservice 2.6.0
Is CVE-2021-21336 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.50% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | products-pluggableauthservice | <2.6.0 |
2.6.0 |
Affected products
- zopefoundation Products.PluggableAuthService
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
github.com
/zopefoundation/Products.PluggableAuthService/commit/2dad81128250cb2e5d950cddc9d3c0314a80b4bb
web, patch, third-party-advisory
-
github.com
/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p75f-g7gx-2r7p
web, third-party-advisory, advisory
-
pypi.org
/project/Products.PluggableAuthService/
product, third-party-advisory, package
-
openwall.com
/lists/oss-security/2021/05/21/1
mailing-list, web, third-party-advisory
-
openwall.com
/lists/oss-security/2021/05/22/1
mailing-list, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-21336
advisory
-
github.com
/pypa/advisory-database/tree/main/vulns/products-pluggableauthservice/PYSEC-2021-44.yaml
web
-
github.com
/zopefoundation/Products.PluggableAuthService
package
-
pypi.org
/project/Products.PluggableAuthService
web
Sources
- CVE List CVE-2021-21336
- GitHub Advisory GHSA-p75f-g7gx-2r7p
- NVD CVE-2021-21336
- OSV PYSEC-2021-44
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.