A XStream Security Vulnerability in XML Deserialization in datavane/tis

published 2026-01-27 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-4764

cvss: 10.0; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits: 0; none known

Unrestricted Upload of File with Dangerous Type, Deserialization of Untrusted Data vulnerability in datavane tis (tis-plugin/src/main/java/com/qlangtech/tis/extension/impl modules). This vulnerability is associated with program files XmlFile.Java.

This issue affects tis: before v4.3.0.

Patch / fix

links 1

github.com/datavane/tis#443 pull request

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 9 mo ago (2026-01-27)

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	10.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:U/V:C/RE:M/U:Red
CNA	4.0	10.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:U/V:C/RE:M/U:Red

Affected products

datavane tis

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type
CWE-502 Deserialization of Untrusted Data

References

github.com /datavane/tis/pull/443
patch

Sources

CVE List CVE-2026-24815
NVD CVE-2026-24815

Fencer Vulns 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.

Summary