CVE-2026-97701: zulip zulip

Zulip: Missing content-length limit on POST /messages/render allows denial-of-service via oversized requests

CVSS 6.5 MediumEPSS 0.0043 · 37th percentile

Published by the CVE Program (CNA: GitHub_M) at 4 Nov 2026, 19:09 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
zulip	zulip	affected < 12.2

Identifiers

CVE-2026-97701

CNA

GitHub_M

Weakness (CWE)

CWE-770

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.5	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0043, the 37th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

4 Nov 2026, 19:09 UTC Confirmed by the CVE List
4 Nov 2026, 19:17 UTC Confirmed by NVD
4 Nov 2026, 19:17 UTC First seen by agentprime

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.