Apache Gravitino: URL path injection via unencoded user-supplied identifiers in MCP REST client f-string URL construction, enabling path traversal to unintended API endpoints.

published 2026-07-13 3 mo ago modified 2026-10-24 15 d ago also PYSEC-2026-3441 , EUVD-2026-43324

cvss: 9.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits: 0; none known

URL path injection via unencoded user-supplied identifiers vulnerability in Apache Gravitino.

This issue affects Apache Gravitino: from 1.0.0 before 1.2.1.

Users are recommended to upgrade to version 1.2.1, which fixes the issue.

Patch / fix

fixed in 2

pypi apache-gravitino 1.2.1
Apache Software Foundation Apache Gravitino 1.2.1

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 3 mo ago (2026-07-13)

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CNA	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
OSV	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem	package	affected	fixed in
pypi	apache-gravitino	>=1.0.0, <1.2.1	1.2.1

Affected products

Apache Software Foundation Apache Gravitino

Classification

Weakness

CWE-177 Improper Handling of URL Encoding (Hex Encoding)

References

lists.apache.org /thread/4dnwg1qzb2yns1fkfmq0z45vmwyzytgz
vendor-advisory, mailing-list, advisory
openwall.com /lists/oss-security/2026/07/13/1
mailing-list, third-party-advisory, advisory

Sources

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