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Vulnerability details: VCID-h23p-8u9p-fbc5
Vulnerability ID VCID-h23p-8u9p-fbc5
Aliases CVE-2026-42203
GHSA-xqmj-j6mv-4862
Summary litellm: LiteLLM: Arbitrary code execution via unsandboxed prompt templates
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-94 Improper Control of Generation of Code ('Code Injection')
CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine
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
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-42203.json
epss 0.00058 https://api.first.org/data/v1/epss?cve=CVE-2026-42203
epss 0.00058 https://api.first.org/data/v1/epss?cve=CVE-2026-42203
cvssv4 8.6 https://github.com/BerriAI/litellm
generic_textual HIGH https://github.com/BerriAI/litellm
cvssv4 8.6 https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable
generic_textual HIGH https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable
ssvc Track https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable
cvssv4 8.6 https://github.com/BerriAI/litellm/security/advisories/GHSA-xqmj-j6mv-4862
generic_textual HIGH https://github.com/BerriAI/litellm/security/advisories/GHSA-xqmj-j6mv-4862
ssvc Track https://github.com/BerriAI/litellm/security/advisories/GHSA-xqmj-j6mv-4862
cvssv4 8.6 https://nvd.nist.gov/vuln/detail/CVE-2026-42203
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-42203
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-42203.json
https://api.first.org/data/v1/epss?cve=CVE-2026-42203
https://github.com/BerriAI/litellm
https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable
https://github.com/BerriAI/litellm/security/advisories/GHSA-xqmj-j6mv-4862
https://nvd.nist.gov/vuln/detail/CVE-2026-42203
2467917 https://bugzilla.redhat.com/show_bug.cgi?id=2467917
GHSA-xqmj-j6mv-4862 https://github.com/advisories/GHSA-xqmj-j6mv-4862
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-42203.json
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

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/BerriAI/litellm
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)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable
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)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-08T14:36:50Z/ Found at https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/BerriAI/litellm/security/advisories/GHSA-xqmj-j6mv-4862
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)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-08T14:36:50Z/ Found at https://github.com/BerriAI/litellm/security/advisories/GHSA-xqmj-j6mv-4862
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-42203
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)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.18424
EPSS Score 0.00058
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:28:39.367484+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-42203.json 38.6.0