CVE-2017-18037 — The git repository tag rest resource in Atlassian Bitbucket Server from version 3.7.0 before 4.14.11 (the fixed version for 4.14.x), from version 5.0.0 before 5.0.9 (the fixed version for 5.0.x), from version 5.1.0 before 5.1.8 (the fixed version for 5.1.x), from version 5.2.0 before 5.2.6 (the fixed version for 5.2.x), from version 5.3.0 before 5.3.4 (the fixed version for 5.3.x), from version 5.4.0 before 5.4.2 (the fixed version for 5.4.x), from version 5.5.0 before 5.5.1 (the fixed version for 5.5.x) and before 5.6.0 allows remote attackers to read arbitrary files via a path traversal vulnerability through the name of a git tag

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MEDIUM

The git repository tag rest resource in Atlassian Bitbucket Server from version 3.7.0 before 4.14.11 (the fixed version for 4.14.x), from version 5.0.0 before 5.0.9 (the fixed version for 5.0.x), from version 5.1.0 before 5.1.8 (the fixed version for 5.1.x), from version 5.2.0 before 5.2.6 (the fixed version for 5.2.x), from version 5.3.0 before 5.3.4 (the fixed version for 5.3.x), from version 5.4.0 before 5.4.2 (the fixed version for 5.4.x), from version 5.5.0 before 5.5.1 (the fixed version for 5.5.x) and before 5.6.0 allows remote attackers to read arbitrary files via a path traversal vulnerability through the name of a git tag

Published Feb 2, 2018

6.5

MEDIUM

CVSS 3.0

EPSS 1.30%

Description

The git repository tag rest resource in Atlassian Bitbucket Server from version 3.7.0 before 4.14.11 (the fixed version for 4.14.x), from version 5.0.0 before 5.0.9 (the fixed version for 5.0.x), from version 5.1.0 before 5.1.8 (the fixed version for 5.1.x), from version 5.2.0 before 5.2.6 (the fixed version for 5.2.x), from version 5.3.0 before 5.3.4 (the fixed version for 5.3.x), from version 5.4.0 before 5.4.2 (the fixed version for 5.4.x), from version 5.5.0 before 5.5.1 (the fixed version for 5.5.x) and before 5.6.0 allows remote attackers to read arbitrary files via a path traversal vulnerability through the name of a git tag.

Affected products

Vendor Atlassian Product Bitbucket Server Default
n/a
- Version
  from 3.7.0 prior to 4.14.11
  Status
  affected
  Constraints
  -
- Version
  from 5.0.0 prior to 5.0.9
  Status
  affected
  Constraints
  -
- Version
  from 5.1.0 prior to 5.1.8
  Status
  affected
  Constraints
  -
- Version
  from 5.2.0 prior to 5.2.6
  Status
  affected
  Constraints
  -
- Version
  from 5.3.0 prior to 5.3.4
  Status
  affected
  Constraints
  -
- Version
  from 5.4.0 prior to 5.4.2
  Status
  affected
  Constraints
  -
- Version
  from 5.5.0 prior to 5.5.1
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Atlassian

Bitbucket Server

n/a

Version	Status	Constraints
from 3.7.0 prior to 4.14.11	affected	-
from 5.0.0 prior to 5.0.9	affected	-
from 5.1.0 prior to 5.1.8	affected	-
from 5.2.0 prior to 5.2.6	affected	-
from 5.3.0 prior to 5.3.4	affected	-
from 5.4.0 prior to 5.4.2	affected	-
from 5.5.0 prior to 5.5.1	affected	-

Remediation

No remediation recorded yet.

Metrics

1.30% 0.01303

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01303

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.30% (0.01303)	69.45th	v5 (v2026.06.15)
Sep 20, 2026	1.30% (0.01303)	69.22th	v5 (v2026.06.15)
Jul 20, 2024	0.18% (0.00181)	55.67th	v3 (v2023.03.01)
Feb 8, 2024	0.18% (0.00181)	54.16th	v3 (v2023.03.01)
Jan 24, 2024	0.19% (0.00192)	57.20th	v3 (v2023.03.01)
Mar 7, 2023	0.19% (0.00192)	55.20th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)
Feb 3, 2022	0.52% (0.00523)	12.55th	v5 (v2026.06.15)
Apr 14, 2021	0.52% (0.00523)	0.00th	v1

Weaknesses (1)

CWE-22

Path Traversal

References (1)

https://jira.atlassian.com/browse/BSERV-10595
x_refsource_CONFIRMVendor Advisory

Link	Providers	Tags
https://jira.atlassian.com/browse/BSERV-10595		x_refsource_CONFIRMVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner atlassian

Published Feb 2, 2018

Updated Sep 16, 2024

Reserved Jan 17, 2018

Link CVE-2017-18037

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2017-18037

Red Hat

Severity n/a

Public date n/a

Links CVE-2017-18037