How severe is CVE-2026-3105?

CVE-2026-3105 has a CVSS score of 8.8/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2026-3105?

CVE-2026-3105 affects the following packages: mautic/core (Packagist), mautic/core (Packagist), mautic/core (Packagist). Ecosystems affected: Packagist.

How do I fix CVE-2026-3105?

Update mautic/core to 5.2.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-3105 is resolved across your whole dependency graph.

How do I detect CVE-2026-3105 in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mautic/core. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate CVE-2026-3105 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against CVE-2026-3105?

O3 pinpoints whether CVE-2026-3105 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is CVE-2026-3105 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-3105 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2026-3105?

CVE-2026-3105 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 20th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

When was CVE-2026-3105 published, and has it been updated?

CVE-2026-3105 was published on February 24, 2026 and was last updated on April 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2026-3105: mautic/core SQL Injection (High 8.8)

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk20th percentile+0.24%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

3 pkgs affected

🐘mautic/core🐘mautic/core🐘mautic/core

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

SummaryThis advisory addresses a SQL injection vulnerability in the API endpoint used for retrieving contact activities. A vulnerability exists in the query construction for the Contact Activity timeline where the parameter responsible for determining the sort direction was not strictly validated against an allowlist, potentially allowing authenticated users to inject arbitrary SQL commands via the API.

MitigationPlease update to 4.4.19, 5.2.10, 6.0.8, 7.0.1 or later.

WorkaroundsNone.

ReferencesIf you have any questions or comments about this advisory:

Email us at [email protected]

Affected Packages

3 total 3 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`mautic/core`	≥ 2.10.0&&< 5.2.10	5.2.10
🐘Packagist	`mautic/core`	≥ 6.0.0-alpha&&< 6.0.8	6.0.8
🐘Packagist	`mautic/core`	≥ 7.0.0-alpha&&< 7.0.1	7.0.1

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mautic/core. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update mautic/core to 5.2.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-3105 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2026-3105 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to CVE-2026-3105. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

SummaryThis advisory addresses a SQL injection vulnerability in the API endpoint used for retrieving contact activities. A vulnerability exists in the query construction for the Contact Activity timeline where the parameter responsible for determining the sort direction was not strictly validated against an allowlist, potentially allowing authenticated users to inject arbitrary SQL commands via the API. MitigationPlease update to 4.4.19, 5.2.10, 6.0.8, 7.0.1 or later. WorkaroundsNone. ReferencesIf you have any questions or comments about this advisory: Email us at [email protected]

O3 Security · Impact-Aware SCA

Is CVE-2026-3105 in your dependencies?

O3 detects CVE-2026-3105 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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CVE-2026-3105