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CVE-2026-45712

Mailpit is an email testing tool and API for developers. Prior to version 1.30.0, the screenshot/print proxy (/proxy?data=…) maintains a package-level assets map[string]MessageAssets cache, but reads the map without holding assetsMutex while a long-running cleanup goroutine and (re-entrant) CSS-rewriting code path concurrently write to it under the lock. When the unsynchronized read coincides with a synchronized write, Go's runtime raises fatal error: concurrent map read and map write — a runtim
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b3eec169d8ffd7213ad92503b9934a757cca7e43e33129ef19b3bfeecfb82c99
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-362","description":"CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d7cf82917888160c7a4f65016e6e9236e6d744c55928dea981bcacc99f88011a · sha256:4efa217cee7dc8b7… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d7cf82917888160c7a4f65016e6e9236e6d744c55928dea981bcacc99f88011a · sha256:4efa217cee7dc8b7… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"mailpit","vendor":"axllent","versions":[{"status":"affected","version":"< 1.30.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d7cf82917888160c7a4f65016e6e9236e6d744c55928dea981bcacc99f88011a · sha256:4efa217cee7dc8b7… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d7cf82917888160c7a4f65016e6e9236e6d744c55928dea981bcacc99f88011a · sha256:4efa217cee7dc8b7… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-362","description":"CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d7cf82917888160c7a4f65016e6e9236e6d744c55928dea981bcacc99f88011a · sha256:4efa217cee7dc8b7… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d7cf82917888160c7a4f65016e6e9236e6d744c55928dea981bcacc99f88011a · sha256:4efa217cee7dc8b7… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/axllent/mailpit/releases/tag/v1.30.0","tags":["x_refsource_MISC"],"url":"https://github.com/axllent/mailpit/releases/tag/v1.30.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d7cf82917888160c7a4f65016e6e9236e6d744c55928dea981bcacc99f88011a · sha256:4efa217cee7dc8b7… · /containers/cna/references/1
{"name":"https://github.com/axllent/mailpit/security/advisories/GHSA-w4vj-r5pg-3722","tags":["x_refsource_CONFIRM"],"url":"https://github.com/axllent/mailpit/security/advisories/GHSA-w4vj-r5pg-3722"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d7cf82917888160c7a4f65016e6e9236e6d744c55928dea981bcacc99f88011a · sha256:4efa217cee7dc8b7… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/axllent/mailpit/security/advisories/GHSA-w4vj-r5pg-3722"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d7cf82917888160c7a4f65016e6e9236e6d744c55928dea981bcacc99f88011a · sha256:4efa217cee7dc8b7… · /containers/adp/0/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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