CVE-2021-25640: apache software foundation apache dubbo Server-Side Request Forgery (SSRF)
CVSS: 6.1v3.1MediumModified
AliasesGHSA-gw4j-4229-q4px
Published 31-05-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-25640 is a medium (CVSS 6.1) Server-Side Request Forgery (SSRF) vulnerability in apache software foundation apache dubbo. EPSS estimates a 2.07% chance of exploitation in the next 30 days, higher than 81.1% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.1 (NVD)EPSS score
2.07%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 31-05-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
In Apache Dubbo prior to 2.6.9 and 2.7.9, the usage of parseURL method will lead to the bypass of white host check which can cause open redirect or SSRF vulnerability.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesAll 2 agree
- OSV · MavenEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Medium 5.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:NSourcesSingle source
EPSS trend
Probability
2.07%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
0.00 pp
From 2.07% on 18-09-2026
18-09-202618-10-2026
EPSS score2.07%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-918Server-Side Request Forgery (SSRF)The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
- CWE-601URL Redirection to Untrusted Site ('Open Redirect')The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
Affected systems
Apache1 product
- dubbo≥ 2.5.0, < 2.6.9 | ≥ 2.7.0, < 2.7.9
Apache software foundation1 product
- apache dubbo≥ Apache Dubbo 2.7.x, < 2.7.9 | ≥ Apache Dubbo 2.6.x, < 2.6.9
Com.alibaba1 product
- dubbo≥ 2.5.0, < 2.6.9
Org.apache.dubbo1 product
- dubbo≥ 2.5.0, < 2.7.10
4 vendors · 4 products
