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CVE-2026-45408

Status: AnalyzedCritical (9)—
Severity9Critical · CVSS 3.1
Exploitation probability0.42 %higher than 35% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Dokku is a docker-powered PaaS. Prior to 0.38.2, the app name validation regex (^[a-z0-9][^/:_A-Z]*$) permits shell metacharacters. When an authenticated user pushes to a git remote with a crafted app name, the name is embedded unquoted into a bash pre-receive hook script via an unquoted heredoc (<<EOF instead of <<'EOF') in fn-git-create-hook() at plugins/git/internal-functions:378. On git push, bash interprets the semicolon as a command separator, executing arbitrary commands as the dokku user. This vulnerability is fixed in 0.38.2.

CVSS

Base score
9
Version
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.42 %
Percentile among all scored CVEs
35
Score date
10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

CWE-78 con inyección en heredoc; UI:R (git push interactivo) + AV:N → T1203. El atacante ejecuta comandos arbitrarios (T1059) como usuario dokku, con potencial escalada (T1068).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Execution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareThreat Intelligence ProgramRestrict Web-Based Content

Affected technologies (1)

Dokku — Dokku

CWEs

References

Show 2 references

Raw JSON (NVD)

Show
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