CVE-2025-65106

HIGHPre-NVD 8.38.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This high-severity CVE scores 8.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (44th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2025-198318 (ENISA EUVD) · GHSA-6qv9-48xg-fc7f (GitHub Security Advisories)Source: ENISA EUVD

8.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 0.3.80 and 1.0.7.

CVSS v3
8.3
EG Score
8.3HIGHmedium confidence
EG Risk
38
EG Risk 38/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity83% × 45%
Impact severity (EG Severity): CVSS 8.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
44th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.3): severity, escalated by confirmed exploitation. This CVE's 8.3 is its impact severity (EG Severity), not escalated.

EG Severity
8.3 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

November 21, 2025

Last Modified

October 19, 2026

Advisory Details (3)

Auto-updated Aug 8, 2026
Patch available. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

Template Injection via Attribute Access in Prompt Templates · Advisory · langchain-ai/langchain · GitHub

https://github.com/langchain-ai/langchain/security/advisories/GHSA-6qv9-48xg-fc7f
GitHub commit

commit fa7789d6c212 (langchain-ai/langchain)

Fix landed in langchain-ai/langchain commit fa7789d6c212 — awaiting tagged release

https://github.com/langchain-ai/langchain/commit/fa7789d6c21222b85211755d822ef698d3b34e00
GitHub commit Patch Available

commit c4b6ba254e1a (langchain-ai/langchain)

Patch available: langchain-ai/langchain langchain-openrouter==0.2.4 (contains commit c4b6ba254e1a)

https://github.com/langchain-ai/langchain/commit/c4b6ba254e1a49ed91f2e268e6484011c540542a

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
piplangchain-core @ 1.0.7 (fixes >= 1.0.0, <= 1.0.6)—ghsa
piplangchain-core @ 0.3.80 (fixes <= 0.3.79)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
langchain-core0.0.1 ... 1.0.6 (218 versions)
  • 1.0.0 up to 1.0.7: fixed in 1.0.7
  • every version up to 0.3.80: fixed in 0.3.80
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 42× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 96 of 230 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 134 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  2. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  3. 2026-11-01 08:02 UTCGHSA enrichmentGHSA-6qv9-48xg-fc7f · GitHub severity HIGH
  4. 2026-11-01 08:02 UTCEG score recompute
  5. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  6. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  7. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  8. 2026-10-29 12:52 UTCEG score recompute
  9. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  10. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  11. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  12. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  13. 2026-10-25 16:10 UTCEG score recompute
  14. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  16. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  17. 2026-10-22 11:28 UTCEG score recompute
  18. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  19. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  20. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  21. 2026-10-19 13:26 UTCEG score recompute
  22. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  23. 2026-10-18 05:19 UTCEG score recompute
  24. 2026-10-17 23:14 UTCEG score recompute
  25. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
Show 71 more
  1. 2026-10-16 16:39 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  2. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  3. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  4. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  5. 2026-10-12 16:49 UTCEG score recompute
  6. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  7. 2026-10-11 20:23 UTCEG score recompute
  8. 2026-10-11 18:35 UTCEG score recompute
  9. 2026-10-11 15:10 UTCEG score recompute
  10. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  11. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  13. 2026-10-08 17:10 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  15. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  16. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  19. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  20. 2026-10-01 10:40 UTCOSV refresh
  21. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  22. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  23. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  25. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  26. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  27. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  28. 2026-09-19 15:42 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  29. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  30. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  31. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  32. 2026-09-15 03:10 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  33. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  34. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  35. 2026-09-12 10:10 UTCOSV refresh
  36. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  37. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  38. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  39. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  40. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  41. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  42. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  43. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  44. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  45. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  46. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  47. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  48. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  49. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  50. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  51. 2026-08-24 15:03 UTCOSV refresh
  52. 2026-08-24 14:16 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  53. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  54. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  55. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  56. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  57. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  58. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  59. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  60. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  61. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  62. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  63. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  64. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  65. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  66. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  67. 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  68. 2026-08-08 09:43 UTCEG score recompute
  69. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  70. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  71. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.5% · 39th percentile

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Frequently asked(5)

What is CVE-2025-65106?
CVE-2025-65106 is a high-severity vulnerability; its CVE record was published on November 21, 2025. 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…
When was the CVE record for CVE-2025-65106 published?
The CVE record for CVE-2025-65106 was published on November 21, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 19, 2026; the record at its source may have been updated since.
Is CVE-2025-65106 actively exploited?
CVE-2025-65106 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-65106?
CVE-2025-65106 has a CVSS base score of 8.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2025-65106?
A fix for CVE-2025-65106 is available: update to the fixed version the vendor names in its advisory.

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