CVE-2024-21697 [High] | RCE in Sourcetree

This High severity RCE (Remote Code Execution) vulnerability was introduced in versions 4.2.8 of Sourcetree for Mac and 3.4.19 for Sourcetree for Windows. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 8.8, allows an unauthenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires user interaction. Atlassian recommends that Sourcetree for Mac and Sourcetree for Windows customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions: Sourcetree for Mac 4.2: Upgrade to a release greater than or equal to 4.2.9 Sourcetree for Windows 3.4: Upgrade to a release greater than or equal to 3.4.20 See the release notes ([https://www.sourcetreeapp.com/download-archives]). You can download the latest version of Sourcetree for Mac and Sourcetree for Windows from the download center ([https://www.sourcetreeapp.com/download-archives]). This vulnerability was reported via our Penetration Testing program.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	2.97%	0.71%	-2.26%
2	2026-04-10	2.21%	2.97%	+0.76%
3	2025-12-30	—	2.21%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

2.97%

0.71%

-2.26%

2026-04-10

2.21%

2.97%

+0.76%

2025-12-30

—

2.21%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	5.9	[email protected]
8.8	3.0	HIGH	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.8

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.8

5.9

[email protected]

8.8

3.0

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.8

5.9

[email protected]

Affected software / configurations for CVE-2024-21697

Vendor	Product	Version	Raw CPE
atlassian	sourcetree	3.4.19	cpe:2.3:a:atlassian:sourcetree:3.4.19:::::windows::
atlassian	sourcetree	4.2.8	cpe:2.3:a:atlassian:sourcetree:4.2.8:::::macos::

References for CVE-2024-21697

URL	Tags
https://confluence.atlassian.com/pages/viewpage.action?pageId=1456179091	Vendor Advisory
https://jira.atlassian.com/browse/SRCTREE-8168	Vendor Advisory

URL

CVE-2024-21697

Exploit prediction scoring system (EPSS) score for CVE-2024-21697

Common vulnerability scoring system (CVSS) metrics for CVE-2024-21697

Weakness enumeration for CVE-2024-21697

Affected software / configurations for CVE-2024-21697

References for CVE-2024-21697