What is CVE-2017-18036?

CVE-2017-18036 is a medium-severity vulnerability in Atlassian Bitbucket, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2018-02-02.

How severe is CVE-2017-18036?

Medium severity. CVSS v3 base score is 4.3 out of 10.

SSRF in Atlassian Bitbucket

CVE-2017-18036

The Github repository importer in Atlassian Bitbucket Server before version 5.3.0 allows remote attackers to determine if a service they could not otherwise reach has open ports via a Server Side Request Forgery (SSRF) vulnerability.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2018-02-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.5th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Atlassian Bitbucket
Atlassian Bitbucket Server — versions prior to 5.3.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

jira.atlassian.com/browse/BSERV-10591 (Vendor Advisory)
www.securityfocus.com/bid/102932 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2017-18036?: CVE-2017-18036 is a medium-severity vulnerability in Atlassian Bitbucket, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2018-02-02.
How severe is CVE-2017-18036?: Medium severity. CVSS v3 base score is 4.3 out of 10.