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CVE-2026-48797

Backpropagate is a Python library for fine-tuning large language models on a single GPU. In versions 1.1.0 and 1.1.1, the optional Reflex web UI exposes a training control plane without authentication: dataset upload, model load, training start/stop, multi-run orchestration, GGUF export, and HuggingFace Hub push. The CLI accepts two operator-facing flags intended as security controls: --auth user:pass — documented as "require HTTP Basic authentication on every request to the UI." and--share — do
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7260f6d1b8bc8eb755b5e7ab6b0d3c7492258cc2ca7ed9af0741130f6228caaf
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"@mcptoolshop/backpropagate","vendor":"mcp-tool-shop-org","versions":[{"status":"affected","version":">= 1.1.0, < 1.2.0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/affected/1

{"product":"backpropagate","vendor":"mcp-tool-shop-org","versions":[{"status":"affected","version":">= 1.1.0, < 1.2.0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/affected/0
cwe · 3 assertions

{"cweId":"CWE-358","description":"CWE-358: Improperly Implemented Security Check for Standard","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-1295","description":"CWE-1295: Debug Messages Revealing Unnecessary Information","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/problemTypes/2/descriptions/0

{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

2 source assertions
{"product":"@mcptoolshop/backpropagate","vendor":"mcp-tool-shop-org","versions":[{"status":"affected","version":">= 1.1.0, < 1.2.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/affected/1
{"product":"backpropagate","vendor":"mcp-tool-shop-org","versions":[{"status":"affected","version":">= 1.1.0, < 1.2.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

3 source assertions
{"cweId":"CWE-358","description":"CWE-358: Improperly Implemented Security Check for Standard","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-1295","description":"CWE-1295: Debug Messages Revealing Unnecessary Information","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/problemTypes/2/descriptions/0
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/mcp-tool-shop-org/backpropagate/releases/tag/v1.2.0","tags":["x_refsource_MISC"],"url":"https://github.com/mcp-tool-shop-org/backpropagate/releases/tag/v1.2.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /containers/cna/references/1
{"name":"https://github.com/mcp-tool-shop-org/backpropagate/security/advisories/GHSA-f65r-h4g3-3h9h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mcp-tool-shop-org/backpropagate/security/advisories/GHSA-f65r-h4g3-3h9h"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6222252966ccbc03cc949c97c361010cb3d4adfcb96997892eb8bad74219b77c · sha256:d6e9e2fd8f42496b… · /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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