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PYSEC-2026-761

Zope Server vulnerable to DoS via header injection

Quick fix

PYSEC-2026-761 — zope: upgrade to the fixed version with the command below.

pip install --upgrade 'zope>=2.4.4b2'

Details

Zope is a Web application server for Linux. Zope versions 2.0 through 2.5.1 b1 are vulnerable to a denial of service attack, caused by a vulnerability that occurs when using the "through the Web code" capability. A remote attacker could inject malicious headers into a response to cause the vulnerable system to crash.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/zope

Introduced in: 2.0.0Fixed in: 2.4.4b2

Fixpip install --upgrade 'zope>=2.4.4b2'

References

https://nvd.nist.gov/vuln/detail/CVE-2002-0687[ADVISORY]
https://marc.info/?l=zope-announce&m=101890177815066&w=2[WEB]
https://marc.info/?l=zope-announce&m=101897461507941&w=2[WEB]
https://marc.info/?l=zope-announce&m=101897462107967&w=2[WEB]
https://web.archive.org/web/20020822024423/http://www.iss.net/security_center/static/9621.php[WEB]
https://web.archive.org/web/20021018100409/http://online.securityfocus.com/bid/5813[WEB]
http://www.redhat.com/support/errata/RHSA-2002-060.html[WEB]
http://www.zope.org/Products/Zope/Hotfix_2002-04-15/security_alert[WEB]
https://pypi.org/project/zope[PACKAGE]
https://github.com/advisories/GHSA-vwrc-g9q6-f675[ADVISORY]