9.8

CVE-2023-22524: atlassian companion

Modified
Published 06-12-2023Last modified 25-02-2026

Vulnerability summary

CVE-2023-22524 is a critical (CVSS 9.8) vulnerability in atlassian companion. EPSS estimates a 24.71% chance of exploitation in the next 30 days, higher than 97.8% of scored vulnerabilities. Fixed in 2.0.0, 2.0.1.

Priority
Prioritisesevere

Severe, CVSS 9.6 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 25% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
24.71%
0%100%
High · +0.18 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 06-12-2023
    PublishedVulnerability first disclosed.
  2. 25-02-2026
    Last modifiedVulnerability information updated.

Description

Certain versions of the Atlassian Companion App for MacOS were affected by a remote code execution vulnerability. An attacker could utilize WebSockets to bypass Atlassian Companion’s blocklist and MacOS Gatekeeper to allow execution of code.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

24.71%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

Increase +0.18 pp

From 24.52% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Atlassian2 products
  • companion≥ 1.0.0, < 2.0.0
  • companion for mac≥ 1.0.0 (fixed in 2.0.0, 2.0.1) | ≥ 1.1.0 (fixed in 2.0.0, 2.0.1) | ≥ 1.2.0 (fixed in 2.0.0, 2.0.1) | ≥ 1.2.2 (fixed in 2.0.0, 2.0.1) | ≥ 1.2.3 (fixed in 2.0.0, 2.0.1) | ≥ 1.2.4 (fixed in 2.0.0, 2.0.1) | ≥ 1.2.5 (fixed in 2.0.0, 2.0.1) | ≥ 1.2.6 (fixed in 2.0.0, 2.0.1) | ≥ 1.3.0 (fixed in 2.0.0, 2.0.1) | ≥ 1.3.1 (fixed in 2.0.0, 2.0.1) | ≥ 1.4.1 (fixed in 2.0.0, 2.0.1) | ≥ 1.4.2 (fixed in 2.0.0, 2.0.1) | ≥ 1.4.3 (fixed in 2.0.0, 2.0.1) | ≥ 1.4.4 (fixed in 2.0.0, 2.0.1) | ≥ 1.4.5 (fixed in 2.0.0, 2.0.1) | ≥ 1.4.6 (fixed in 2.0.0, 2.0.1) | ≥ 1.5.0 (fixed in 2.0.0, 2.0.1) | ≥ 1.6.0 (fixed in 2.0.0, 2.0.1) | ≥ 1.6.1 (fixed in 2.0.0, 2.0.1)

1 vendor · 2 products

References

2 links