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CVE-2026-76803· NVD / CVE Program· CNA GitHub_M

Nuclei: Local File Read via MySQL Client Sandbox Bypass

Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From 3.0.0 until 3.10.0, the nuclei/mysql JavaScript library does not enforce the local-file sandbox when a JavaScript template supplies the allowAllFiles MySQL DSN option. An untrusted javascript: template scanning an attacker-controlled MySQL-compatible endpoint can cause the server to issue LOAD DATA LOCAL INFILE requests for arbitrary paths, after which the scanner's MySQL client reads the files and returns their contents to the server even though -allow-local-file-access is disabled. JavaScript templates can run unsigned and without the -code flag on affected versions, and the bypass affects CLI and SDK deployments that accept untrusted templates. This issue is fixed in version 3.10.0.

MediumCVSS 5.3 · v3.1—No exploit Fix available
Published
Sep 22, 2026
Updated
Sep 25, 2026
EPSS
0.4% · 32th percentile
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Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
5.3
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • projectdiscovery nuclei

    • >= 3.0.0, < 3.10.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Gogithub.com/projectdiscovery/nucleiall versions—
Gogithub.com/projectdiscovery/nuclei/v2all versions—
Gogithub.com/projectdiscovery/nuclei/v3from 3.0.0 · before 3.10.03.10.0

Other highest-scoring records for the same primary product.

  • CVE-2024-43405Nuclei Template Signature Verification Bypass
    31Monitor
  • CVE-2026-41282ProjectDiscovery Nuclei 3 before 3.8.0 allows DSL expression injection.
    30Monitor
  • CVE-2023-37896Nuclei Path Traversal vulnerability
    30Monitor
  • CVE-2024-40641Unsigned code template execution through workflows in projectdiscovery/nuclei
    29Monitor
  • CVE-2024-27920Unsigned code template execution through workflows in projectdiscovery/nuclei
    29Monitor
  • CVE-2026-92718Nuclei from 3.7.0 before 3.11.1 Template Signature Bypass via Modification-Time-Only Cache
    28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
projectdiscovery nuclei3.10.0 · descriptionVendor (CNA)
Go:github.com/projectdiscovery/nuclei/v33.10.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-768040 days apartNuclei: Local File Read via Workflow File-Protocol Gate Bypass
    22Monitor
  • CVE-2026-41646137 days apartNuclei: Local File Read via require() Module Loader Bypass
    22Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

CVSS vector

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

nvd-secondary

Change log

  1. Fix✗ → ✓

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References

All records