LiveActive security incident?Get immediate response
CVE Record

CVE-2026-79696: Remote Code Execution in Google ADK for Python via Incomplete Standard Library Denylist

A Code Injection vulnerability in adk web in Google Cloud Agent Development Kit (ADK) for Python versions 2.0.0 through 2.6.0 on Python (OSS), Cloud Run, and GKE environments where pytest is installed allows an unauthenticated remote attacker to execute arbitrary code using a crafted test session replay.

CriticalCVSS 10Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

A remotely reachable ADK web deployment may let an unauthenticated attacker run arbitrary code when it uses Google ADK for Python 2.0.0–2.6.0 and pytest is installed. Successful exploitation could expose or alter data, disrupt services, and affect connected systems. The issue is rated CVSS 10.0.

Executive priority

Treat this as an immediate remediation priority for internet-facing or sensitive deployments. Identify exposed instances, restrict access, remove unnecessary pytest dependencies, and follow Google’s v2.7.0 guidance. Begin incident review where affected configurations were externally reachable, while avoiding claims of compromise without evidence.

Technical view

CVE-2026-79696 is a CWE-184 code-injection flaw caused by an incomplete standard-library denylist. A crafted test-session replay can trigger arbitrary code execution in affected ADK web deployments without authentication or user interaction. The stated scope covers Python OSS, Cloud Run, and GKE environments where pytest is installed.

Likely exposure

Highest exposure exists where ADK web versions 2.0.0–2.6.0 are remotely accessible and pytest is present in the runtime. Deployments without pytest, outside the stated version range, or without exposed ADK web functionality are not established as affected by the supplied evidence.

Exploitation context

The supplied record describes network-accessible, low-complexity, unauthenticated exploitation with complete confidentiality, integrity, and availability impact. It does not report known active exploitation, and the CVE is not listed as KEV in the bundle. No reliable exploitation prevalence is provided.

Researcher notes

The core condition combines an incomplete denylist with pytest availability and crafted test-session replay. The narrative states versions 2.0.0–2.6.0, while the structured affected entry lists only 2.0.0 with default status unaffected. Validate exact version applicability using the linked release and commit before final fleet scoping.

Mitigation direction

  • Inventory ADK web deployments and identify versions 2.0.0 through 2.6.0.
  • Remove pytest from production runtime images where it is unnecessary.
  • Restrict external access to ADK web and test-session functionality pending remediation.
  • Review Google ADK v2.7.0 guidance and upgrade according to vendor instructions.
  • Rotate exposed credentials if compromise indicators are discovered.

Validation and detection

  • Confirm the installed Google ADK for Python version in every environment.
  • Inspect runtime dependencies and container images for pytest.
  • Verify whether ADK web or test-session replay interfaces are externally reachable.
  • Review logs for unexpected test-session activity, process creation, or outbound connections.
  • Confirm remediation against the referenced v2.7.0 release and security commit.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-184: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-79696 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
10 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Amber

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
10CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Amber——GoogleCloud

Vulnerability scoring details

Base CVSS 4.0 score

10Critical
CVSS 4.0 vector shape for CVE-2026-79696Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Amber

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Google CloudAgent Development Kit (ADK) for Python2.0.0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-184 · source CWE mapping

Incomplete List of Disallowed Inputs

Incomplete List of Disallowed Inputs represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.