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CVE-2026-57511

SuperPlane before 0.30.0 contains an SMTP header injection vulnerability that allows unauthenticated attackers to inject arbitrary SMTP headers by including CRLF sequences in the event payload title field delivered via webhook. Attackers can manipulate the unsanitized title field passed to the SMTP DATA command to add Bcc recipients for content exfiltration, forge the From address to bypass SPF and DKIM checks, or inject Content-Type and MIME boundary headers to corrupt message bodies for phishi
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1f070c31b65f090bb0674124da62f107f3208763be3b63f0d94aec4457c7a995
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0454b50e2dda2752df847e82733e4dd98d5ff5be586c4da0e4e1f74829a1f49e · sha256:a5b130aac78613c2… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0454b50e2dda2752df847e82733e4dd98d5ff5be586c4da0e4e1f74829a1f49e · sha256:a5b130aac78613c2… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"affected","packageURL":"pkg:github/superplanehq/superplane","product":"superplane","repo":"https://github.com/superplanehq/superplane","vendor":"superplanehq","versions":[{"lessThan":"0.30.0","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0454b50e2dda2752df847e82733e4dd98d5ff5be586c4da0e4e1f74829a1f49e · sha256:a5b130aac78613c2… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0454b50e2dda2752df847e82733e4dd98d5ff5be586c4da0e4e1f74829a1f49e · sha256:a5b130aac78613c2… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0454b50e2dda2752df847e82733e4dd98d5ff5be586c4da0e4e1f74829a1f49e · sha256:a5b130aac78613c2… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-93","description":"Improper Neutralization of CRLF Sequences ('CRLF Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0454b50e2dda2752df847e82733e4dd98d5ff5be586c4da0e4e1f74829a1f49e · sha256:a5b130aac78613c2… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"Patch Commit","tags":["patch"],"url":"https://github.com/superplanehq/superplane/commit/428c559dd2fa0aef3ba825a434a1b05c9abc7df7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0454b50e2dda2752df847e82733e4dd98d5ff5be586c4da0e4e1f74829a1f49e · sha256:a5b130aac78613c2… · /containers/cna/references/2
{"name":"Pull Request","tags":["issue-tracking"],"url":"https://github.com/superplanehq/superplane/pull/6354"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0454b50e2dda2752df847e82733e4dd98d5ff5be586c4da0e4e1f74829a1f49e · sha256:a5b130aac78613c2… · /containers/cna/references/1
{"name":"Release Notes","tags":["release-notes"],"url":"https://github.com/superplanehq/superplane/releases/tag/v0.30.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0454b50e2dda2752df847e82733e4dd98d5ff5be586c4da0e4e1f74829a1f49e · sha256:a5b130aac78613c2… · /containers/cna/references/0
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/superplane-smtp-header-injection-via-webhook-event-title"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0454b50e2dda2752df847e82733e4dd98d5ff5be586c4da0e4e1f74829a1f49e · sha256:a5b130aac78613c2… · /containers/cna/references/3

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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