Is CVE-2026-49248 in the CISA KEV catalog?

No. CVE-2026-49248 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-49248?

CVE-2026-49248 has a CVSS v4 base score of 8.3 (HIGH).

What is the EPSS score for CVE-2026-49248?

CVE-2026-49248 has an EPSS score of 0.38% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-49248?

No published fix for CVE-2026-49248 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-49248

HIGH

8.3

CVSS v4

NVD

Description

OneDev is a Git server with CI/CD, kanban, and packages. In versions 15.0.6 and below, TarUtils.untar() creates symbolic links verbatim from TAR entry getLinkName() without validating whether the target is an absolute path. A subsequent file entry in the same archive traverses the symlink, writing to arbitrary server-side locations. This is exploitable by any authenticated user with CI Job write access — no admin interaction required. This is an incomplete fix bypass of CVE-2021-21251 (GHSA-2w6j-wc8c-9mq2): that patch blocked .. path segments but did not address absolute symlink targets. This issue has been fixed in version 15.0.7.

CWE-61

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v4 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Impact

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/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:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Intelligence

0.38%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Other references2

Related Vulnerabilities

Other CWE-61 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-28189	Critical	10.0	7.2%	-	-
CVE-2024-28185	Critical	10.0	7.1%	-	-
CVE-2019-11249	Medium	6.5	3.7%	-	Fix
CVE-2019-11246	Medium	6.5	3.6%	-	Fix
CVE-2019-16775	High	7.7	3.3%	-	Fix
CVE-2019-11251	Medium	4.8	2.6%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-23.