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Vulnerability details: VCID-hm7p-vy71-vucv
Vulnerability ID VCID-hm7p-vy71-vucv
Aliases CVE-2026-1777
GHSA-rjrp-m2jw-pv9c
Summary The Amazon SageMaker Python SDK before v3.2.0 and v2.256.0 includes the ModelBuilder HMAC signing key in the cleartext response elements of the DescribeTrainingJob function. A third party with permissions to both call this API and permissions to modify objects in the Training Jobs S3 output location may have the ability to upload arbitrary artifacts which are executed the next time the Training Job is invoked.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (5)
CWE-319 Cleartext Transmission of Sensitive Information
CWE-201 Insertion of Sensitive Information Into Sent Data
CWE-295 Improper Certificate Validation
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-1777
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-1777
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-1777
cvssv3.1 7.2 https://aws.amazon.com/security/security-bulletins/2026-004-AWS
cvssv4 8.7 https://aws.amazon.com/security/security-bulletins/2026-004-AWS
generic_textual HIGH https://aws.amazon.com/security/security-bulletins/2026-004-AWS
cvssv3.1 7.2 https://aws.amazon.com/security/security-bulletins/2026-004-AWS/
cvssv4 8.5 https://aws.amazon.com/security/security-bulletins/2026-004-AWS/
ssvc Track https://aws.amazon.com/security/security-bulletins/2026-004-AWS/
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-rjrp-m2jw-pv9c
cvssv3.1 7.2 https://github.com/aws/sagemaker-python-sdk
cvssv4 8.7 https://github.com/aws/sagemaker-python-sdk
generic_textual HIGH https://github.com/aws/sagemaker-python-sdk
cvssv3.1 7.2 https://github.com/aws/sagemaker-python-sdk/commit/708c7b2f4135ecaec55973d098f3dbe98b657933
cvssv4 8.7 https://github.com/aws/sagemaker-python-sdk/commit/708c7b2f4135ecaec55973d098f3dbe98b657933
generic_textual HIGH https://github.com/aws/sagemaker-python-sdk/commit/708c7b2f4135ecaec55973d098f3dbe98b657933
cvssv3.1 7.2 https://github.com/aws/sagemaker-python-sdk/commit/fb0d789db4fd5fecde5509963939369f4c7ce63b
cvssv4 8.7 https://github.com/aws/sagemaker-python-sdk/commit/fb0d789db4fd5fecde5509963939369f4c7ce63b
generic_textual HIGH https://github.com/aws/sagemaker-python-sdk/commit/fb0d789db4fd5fecde5509963939369f4c7ce63b
cvssv3.1 7.2 https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
cvssv4 8.5 https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
cvssv4 8.7 https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
generic_textual HIGH https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
ssvc Track https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
cvssv3.1 7.2 https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
cvssv4 8.5 https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
cvssv4 8.7 https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
generic_textual HIGH https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
ssvc Track https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
cvssv3.1 7.2 https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
cvssv3.1_qr HIGH https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
cvssv4 8.5 https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
cvssv4 8.7 https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
generic_textual HIGH https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
ssvc Track https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
cvssv3.1 7.2 https://nvd.nist.gov/vuln/detail/CVE-2026-1777
cvssv4 8.7 https://nvd.nist.gov/vuln/detail/CVE-2026-1777
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-1777
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-1777
https://aws.amazon.com/security/security-bulletins/2026-004-AWS
https://github.com/aws/sagemaker-python-sdk
https://github.com/aws/sagemaker-python-sdk/commit/708c7b2f4135ecaec55973d098f3dbe98b657933
https://github.com/aws/sagemaker-python-sdk/commit/fb0d789db4fd5fecde5509963939369f4c7ce63b
2026-004-AWS https://aws.amazon.com/security/security-bulletins/2026-004-AWS/
CVE-2026-1777 https://nvd.nist.gov/vuln/detail/CVE-2026-1777
GHSA-rjrp-m2jw-pv9c https://github.com/advisories/GHSA-rjrp-m2jw-pv9c
GHSA-rjrp-m2jw-pv9c https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
v2.256.0 https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
v3.2.0 https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://aws.amazon.com/security/security-bulletins/2026-004-AWS
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://aws.amazon.com/security/security-bulletins/2026-004-AWS
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://aws.amazon.com/security/security-bulletins/2026-004-AWS/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H Found at https://aws.amazon.com/security/security-bulletins/2026-004-AWS/
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-02-03T15:00:05Z/ Found at https://aws.amazon.com/security/security-bulletins/2026-004-AWS/
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/aws/sagemaker-python-sdk
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/aws/sagemaker-python-sdk
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/aws/sagemaker-python-sdk/commit/708c7b2f4135ecaec55973d098f3dbe98b657933
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/aws/sagemaker-python-sdk/commit/708c7b2f4135ecaec55973d098f3dbe98b657933
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/aws/sagemaker-python-sdk/commit/fb0d789db4fd5fecde5509963939369f4c7ce63b
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/aws/sagemaker-python-sdk/commit/fb0d789db4fd5fecde5509963939369f4c7ce63b
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H Found at https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-02-03T15:00:05Z/ Found at https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H Found at https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-02-03T15:00:05Z/ Found at https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H Found at https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-02-03T15:00:05Z/ Found at https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2026-1777
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-1777
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Exploit Prediction Scoring System (EPSS)
Percentile 0.06434
EPSS Score 0.00022
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:49:57.799706+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/1xxx/CVE-2026-1777.json 38.6.0