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CVE-2026-26058

Zulip: Path Traversal in Import

MEDIUM
6.1
CVSS Score
Published: April 3, 2026 at 08:59 PM UTC
Updated: July 24, 2026 at 10:20 PM UTC
1 product affected across 1 vendorZulip

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

Zulip is an open-source team collaboration tool. From version 1.4.0 to before version 11.6, ./manage.py import reads arbitrary files from the server filesystem via path traversal in uploads/records.json. A crafted export tarball causes the server to copy any file the zulip user can read into the uploads directory during import. This issue has been patched in version 11.6.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Zulip· Zulip
95%
v < 11.61.4.0 ≤ v ≤ 11.5
Affected range stops below 11.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/zulip/zulip/security/advisories/GHSA-xm5c-c6mp-3956
x_refsource_MISCPatch
Source: cverecord
https://github.com/zulip/zulip/commit/2df49e7750ce3fc49ef1d44b1c4ece654d4b754c

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-22

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