Modoboa is a mail hosting and management platform. Prior to version 2.7.1, exec_cmd() in modoboa/lib/sysutils.py always runs subprocess calls with shell=True. Since domain names flow directly into shell command strings without any sanitization, a Reseller or SuperAdmin can include shell metacharacters in a domain name to run arbitrary OS commands on the server. Version 2.7.1 patches the issue.
CVE-2026-27602
HIGHPre-NVD 7.27.2
EchelonGraph scoreLOW confidence
This high-severity CVE scores 7.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.2Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.2
- EG Score
- 7.2(low)
- EG Risk
- 37(Track)EG Risk 37/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity72% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 44%
- KEV
- Not listed
Published
March 25, 2026
Last Modified
June 17, 2026
References (4)
- security-advisories@githubhttps://github.com/modoboa/modoboa/commit/27a7aa133d3608fe8c25ae39125d1012c333cbfa
- security-advisories@githubhttps://github.com/modoboa/modoboa/releases/tag/2.7.1
- security-advisories@githubhttps://github.com/modoboa/modoboa/security/advisories/GHSA-wwv8-cqpr-vx3m
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/modoboa/modoboa/security/advisories/GHSA-wwv8-cqpr-vx3m
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-28 15:36 UTCEPSS rescore
- 2026-07-27 14:23 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-78
- CVE-2009-20011EG 10.0CRITICAL
- CVE-2011-10017EG 10.0CRITICAL
- CVE-2012-1166EG 10.0EPSS p91HIGH
- CVE-2012-2976EG 10.0EPSS p92HIGH
- CVE-2012-2953EG 10.0EPSS p99HIGH
- CVE-2011-4502EG 10.0EPSS p92HIGH
- CVE-2011-2148EG 10.0EPSS p92HIGH
- CVE-2011-0382EG 10.0EPSS p90HIGH
- CVE-2011-0381EG 10.0EPSS p92HIGH
- CVE-2011-0372EG 10.0HIGH
Frequently asked(5)
What is CVE-2026-27602?
CVE-2026-27602 is a high vulnerability published on March 25, 2026. Modoboa is a mail hosting and management platform. Prior to version 2.7.1, exec_cmd() in modoboa/lib/sysutils.py always runs subprocess calls with shell=True. Since domain names flow directly into shell command strings without any sanitization, a Reseller or SuperAdmin can include shell…
When was CVE-2026-27602 disclosed?
CVE-2026-27602 was first published in the National Vulnerability Database on March 25, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27602 actively exploited?
CVE-2026-27602 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.4% of all scored CVEs.
What is the CVSS score of CVE-2026-27602?
CVE-2026-27602 has a CVSS v3 base score of 7.2 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-27602?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27602, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-27602
Is Your Infrastructure Affected by CVE-2026-27602?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.