Apache SOAP: XML External Entity Injection (XXE) allows unauthenticated users to read arbitrary files via HTTP

published 2022-09-22 4 y ago modified 2026-06-17 4 mo ago also GHSA-jq8c-j47c-vvwm , EUVD-2022-6857

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.9%; EPSS 1.9% chance of exploitation in 30 days, percentile 80%
public exploits: 0; none known

An Improper Restriction of XML External Entity Reference vulnerability in RPCRouterServlet of Apache SOAP allows an attacker to read arbitrary files over HTTP. This issue affects Apache SOAP version 2.2 and later versions. It is unknown whether previous versions are also affected. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 2 y ago (2024-07-16)

Exploit prediction

1.92% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	soap:soap	>=2.2, <=2.3.1	no fix listed

Affected products

Apache Software Foundation Apache SOAP
apache soap

Classification

Weakness

CWE-611 Improper Restriction of XML External Entity Reference

References

lists.apache.org /thread/02yo04w93rdjmllz4454lvodn5xzhwhl
web, mailing-list, vendor-advisory
openwall.com /lists/oss-security/2022/09/22/1
mailing-list, web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2022-40705
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