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CVE-2026-41645

Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From version 3.0.0 to before version 3.8.0, a vulnerability in Nuclei's expression evaluation engine makes it possible for a malicious target server to inject and execute supported DSL expressions. This happens when HTTP response data containing helper/function syntax gets reused by multi-step templates. If the -env-vars / -ev option is explicitly enabled, this can expose host environment variables. That option is off by default
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:19ecfa0711dd7c408fa13df09914b34cc1c5a857821c71f858a4cb04a58d2b0c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"nuclei","vendor":"projectdiscovery","versions":[{"status":"affected","version":">= 3.0.0, < 3.8.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e1a27860e196e5423b3a16603521643a77eeeafd16725abe0210420dc80eda32 · sha256:42eaeb1a40a67a02… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e1a27860e196e5423b3a16603521643a77eeeafd16725abe0210420dc80eda32 · sha256:42eaeb1a40a67a02… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-94","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e1a27860e196e5423b3a16603521643a77eeeafd16725abe0210420dc80eda32 · sha256:42eaeb1a40a67a02… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"name":"https://github.com/projectdiscovery/nuclei/commit/6c803c74d193f85f8a6d9803ce493fd302cad0eb","tags":["x_refsource_MISC"],"url":"https://github.com/projectdiscovery/nuclei/commit/6c803c74d193f85f8a6d9803ce493fd302cad0eb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e1a27860e196e5423b3a16603521643a77eeeafd16725abe0210420dc80eda32 · sha256:42eaeb1a40a67a02… · /containers/cna/references/3
{"name":"https://github.com/projectdiscovery/nuclei/commit/d2217320162d5782ca7cb95bef9dda17063818f3","tags":["x_refsource_MISC"],"url":"https://github.com/projectdiscovery/nuclei/commit/d2217320162d5782ca7cb95bef9dda17063818f3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e1a27860e196e5423b3a16603521643a77eeeafd16725abe0210420dc80eda32 · sha256:42eaeb1a40a67a02… · /containers/cna/references/4
{"name":"https://github.com/projectdiscovery/nuclei/pull/7221","tags":["x_refsource_MISC"],"url":"https://github.com/projectdiscovery/nuclei/pull/7221"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e1a27860e196e5423b3a16603521643a77eeeafd16725abe0210420dc80eda32 · sha256:42eaeb1a40a67a02… · /containers/cna/references/1
{"name":"https://github.com/projectdiscovery/nuclei/pull/7321","tags":["x_refsource_MISC"],"url":"https://github.com/projectdiscovery/nuclei/pull/7321"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e1a27860e196e5423b3a16603521643a77eeeafd16725abe0210420dc80eda32 · sha256:42eaeb1a40a67a02… · /containers/cna/references/2
{"name":"https://github.com/projectdiscovery/nuclei/releases/tag/v3.8.0","tags":["x_refsource_MISC"],"url":"https://github.com/projectdiscovery/nuclei/releases/tag/v3.8.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e1a27860e196e5423b3a16603521643a77eeeafd16725abe0210420dc80eda32 · sha256:42eaeb1a40a67a02… · /containers/cna/references/5
{"name":"https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jm34-66cf-qpvr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jm34-66cf-qpvr"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e1a27860e196e5423b3a16603521643a77eeeafd16725abe0210420dc80eda32 · sha256:42eaeb1a40a67a02… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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