CVE-2026-4810

CRITICALNVD 9.39.3
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 2.2% (82nd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Trending — 3 sources updated this week
9.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.2%CVSS: 9.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A Code Injection and Missing Authentication vulnerability in Google Agent Development Kit (ADK) versions 1.7.0 (and 2.0.0a1) through 1.28.1 (and 2.0.0a2) on Python (OSS), Cloud Run, and GKE allows an unauthenticated remote attacker to execute arbitrary code on the server hosting the ADK instance.

This vulnerability was patched in versions 1.28.1 and 2.0.0a2.

Customers need to redeploy the upgraded ADK to their production environments. In addition, if they are running ADK Web locally, they also need to upgrade their local instance.

CVSS v3
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
58
EG Risk 58/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity93% × 45%
The EG Score, 9.3 of 10.
Exploitation2.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
2.2%
EPSS %ILE
82nd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

April 13, 2026

Last Modified

April 13, 2026

Advisory Details (1)

Auto-updated Sep 15, 2026
Patch available.
Web page

adk-python/CHANGELOG.md at main · google/adk-python · GitHub

https://github.com/google/adk-python/blob/main/CHANGELOG.md#1274-2026-03-26

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
google-adk1.10.0 ... 2.0.0a1 (33 versions)
  • 1.7.0 up to 1.28.1: fixed in 1.28.1
  • 2.0.0a1 up to 2.0.0a2: fixed in 2.0.0a2
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 31× 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 98 of 175 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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 77 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-15 17:20 UTCEG score recompute
  2. 2026-10-15 16:32 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  3. 2026-10-14 16:33 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  4. 2026-10-14 11:20 UTCEG score recompute
  5. 2026-10-13 16:34 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  6. 2026-10-13 09:23 UTCEG score recompute
  7. 2026-10-12 16:34 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  8. 2026-10-12 16:01 UTCEG score recompute
  9. 2026-10-11 19:44 UTCEG score recompute
  10. 2026-10-11 16:58 UTCEG score recompute
  11. 2026-10-11 14:23 UTCEG score recompute
  12. 2026-10-11 13:49 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  13. 2026-10-11 07:25 UTCOSV refresh
  14. 2026-10-10 20:00 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  15. 2026-10-09 20:07 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  16. 2026-10-08 17:12 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  17. 2026-10-07 23:48 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  18. 2026-10-06 15:18 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  19. 2026-10-05 17:43 UTCEPSS rescoreEPSS 2.2% · 82nd percentile
  20. 2026-10-03 14:26 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  21. 2026-10-01 19:50 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  22. 2026-09-30 15:03 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  23. 2026-09-28 13:51 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  24. 2026-09-27 13:48 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  25. 2026-09-26 15:59 UTCEPSS rescoreEPSS 2.2% · 81st percentile
Show 73 more
  1. 2026-09-26 00:27 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  2. 2026-09-23 17:53 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  3. 2026-09-21 19:49 UTCOSV refresh
  4. 2026-09-18 19:28 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  5. 2026-09-16 14:08 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  6. 2026-09-16 05:15 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  7. 2026-09-11 14:53 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  8. 2026-09-10 09:35 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  9. 2026-09-08 22:01 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  10. 2026-09-07 16:01 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  11. 2026-09-06 13:47 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  12. 2026-09-04 05:06 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  13. 2026-09-02 16:08 UTCOSV refresh
  14. 2026-09-02 14:12 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  15. 2026-09-01 13:54 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  16. 2026-09-01 04:40 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  17. 2026-08-30 19:17 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  18. 2026-08-30 01:22 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  19. 2026-08-28 21:41 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  20. 2026-08-27 14:25 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  21. 2026-08-26 14:46 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  22. 2026-08-25 13:49 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  23. 2026-08-23 00:19 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  24. 2026-08-21 23:49 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  25. 2026-08-20 22:55 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  26. 2026-08-19 17:04 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  27. 2026-08-18 13:48 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  28. 2026-08-17 13:47 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  29. 2026-08-16 14:56 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  30. 2026-08-16 06:56 UTCEG score recompute
  31. 2026-08-16 02:14 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  32. 2026-08-15 02:13 UTCEG score recompute
  33. 2026-08-15 01:30 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  34. 2026-08-14 04:57 UTCEG score recompute
  35. 2026-08-13 22:00 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  36. 2026-08-12 19:11 UTCEG score recompute
  37. 2026-08-12 13:51 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  38. 2026-08-11 19:18 UTCEG score recompute
  39. 2026-08-11 02:52 UTCEG score recompute
  40. 2026-08-11 00:00 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  41. 2026-08-09 16:40 UTCEG score recompute
  42. 2026-08-09 13:46 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  43. 2026-08-09 04:20 UTCEG score recompute
  44. 2026-08-08 16:37 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  45. 2026-08-07 17:52 UTCEG score recompute
  46. 2026-08-06 17:30 UTCEG score recompute
  47. 2026-08-06 13:47 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  48. 2026-08-05 23:35 UTCEG score recompute
  49. 2026-08-05 19:17 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  50. 2026-08-04 15:10 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  51. 2026-08-04 10:39 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  52. 2026-08-03 21:49 UTCEG score recompute
  53. 2026-08-03 10:36 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  54. 2026-08-02 13:35 UTCEG score recompute
  55. 2026-08-02 02:27 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  56. 2026-08-01 04:16 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  57. 2026-07-30 16:28 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  58. 2026-07-30 01:30 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  59. 2026-07-28 15:37 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  60. 2026-07-26 14:54 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  61. 2026-07-25 14:18 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  62. 2026-07-24 14:18 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  63. 2026-07-23 14:18 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  64. 2026-07-23 03:18 UTCEG score recompute
  65. 2026-07-22 14:08 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  66. 2026-07-21 15:25 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  67. 2026-07-20 19:02 UTCOSV refresh
  68. 2026-07-20 17:08 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  69. 2026-07-19 14:31 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  70. 2026-07-19 02:29 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  71. 2026-07-18 10:04 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  72. 2026-07-16 17:03 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  73. 2026-07-15 16:57 UTCEPSS rescoreEPSS 1.8% · 76th percentile

Public detection templates

(1 reference)

A public Nuclei detection template is referenced for this CVE. A detection template checks whether a system is affected; it is not necessarily exploit code.

  • Nucleihttp/cves/2026/CVE-2026-4810.yaml
    Published May 6, 2026

    Google ADK-Python - Unauthenticated Builder Endpoint

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-4810?
CVE-2026-4810 is a critical-severity vulnerability; its CVE record was published on April 13, 2026. A Code Injection and Missing Authentication vulnerability in Google Agent Development Kit (ADK) versions 1.7.0 (and 2.0.0a1) through 1.28.1 (and 2.0.0a2) on Python (OSS), Cloud Run, and GKE allows an unauthenticated remote attacker to execute arbitrary code on the server hosting the ADK instance.…
When was the CVE record for CVE-2026-4810 published?
The CVE record for CVE-2026-4810 was published on April 13, 2026. 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 April 13, 2026; the record at its source may have been updated since.
Is CVE-2026-4810 actively exploited?
CVE-2026-4810 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.2% probability of exploitation in the next 30 days (82nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-4810?
CVE-2026-4810 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-4810?
A fix for CVE-2026-4810 is available: update to the fixed version the vendor names in its advisory.

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