CVE Explorer

CVE-2025-65106

LangChain is a framework for building agents and LLM-powered applications. From versions 0.3.79 and prior and 1.0.0 to 1.0.6, a template injection vulnerability exists in LangChain's prompt template system that allows attackers to access Python object internals through template syntax. This vulnerability affects applications that accept untrusted template strings (not just template variables) in ChatPromptTemplate and related prompt template classes. This issue has been patched in versions 0.3.8

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0a7f305fb4348a00c044d642e4d79e20812670abd5a8dd941de61b5670ea8855

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"langchain","vendor":"langchain-ai","versions":[{"status":"affected","version":">= 1.0.0, < 1.0.7"},{"status":"affected","version":"< 0.3.80"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:3c854f9e7ef959d2c253fdcbe22d1692483446a99d384ddbe141d5031e02ddd1 · sha256:67b5dc88a2e4b134… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":8.3,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:3c854f9e7ef959d2c253fdcbe22d1692483446a99d384ddbe141d5031e02ddd1 · sha256:67b5dc88a2e4b134… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-1336","description":"CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:3c854f9e7ef959d2c253fdcbe22d1692483446a99d384ddbe141d5031e02ddd1 · sha256:67b5dc88a2e4b134… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/langchain-ai/langchain/commit/c4b6ba254e1a49ed91f2e268e6484011c540542a","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langchain/commit/c4b6ba254e1a49ed91f2e268e6484011c540542a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3c854f9e7ef959d2c253fdcbe22d1692483446a99d384ddbe141d5031e02ddd1 · sha256:67b5dc88a2e4b134… · /containers/cna/references/1

{"name":"https://github.com/langchain-ai/langchain/commit/fa7789d6c21222b85211755d822ef698d3b34e00","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langchain/commit/fa7789d6c21222b85211755d822ef698d3b34e00"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3c854f9e7ef959d2c253fdcbe22d1692483446a99d384ddbe141d5031e02ddd1 · sha256:67b5dc88a2e4b134… · /containers/cna/references/2

{"name":"https://github.com/langchain-ai/langchain/security/advisories/GHSA-6qv9-48xg-fc7f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/langchain-ai/langchain/security/advisories/GHSA-6qv9-48xg-fc7f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3c854f9e7ef959d2c253fdcbe22d1692483446a99d384ddbe141d5031e02ddd1 · sha256:67b5dc88a2e4b134… · /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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