Unsafe Java Deserialization in Application Integration SubWorkflow tasks allows Remote Code Execution
Application Integration versions before September 11, 2026 that use the SubWorkflow task are affected. The fix is in the September 11, 2026 release.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Fix
- Fixed in 2026-09-11
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
Google Cloud Application Integration's SubWorkflow task contains a flaw that lets an authenticated user run arbitrary code on the service by submitting a specially crafted serialized object. Google patched the issue on 11 September 2026, and customers require no action.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A Deserialization of Untrusted Data vulnerability in the SubWorkflow task in Google Cloud Application Integration versions prior to 2026-09-11 on Google Cloud Platform allows an authenticated attacker to execute arbitrary code using a maliciously crafted serialized object. This vulnerability was patched on 11 September 2026, and no customer action is needed.
Timeline
- CVE published
- First seen by cve.now
- Posted on X by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Google Cloud Application Integration
fixed in 2026-09-11
References 1
docs.cloud.google.com
Questions about CVE-2026-93327
What does this mean?
SubWorkflow tasks in Application Integration unsafely deserialize Java objects. An authenticated user could send a maliciously crafted serialized object and execute arbitrary code.Source: docs.cloud.google.com
Am I affected, and how do I check?
Application Integration versions prior to September 11, 2026 that use the SubWorkflow task are affected. To check a setup, look at the Application Integration version in use and whether any integration uses the SubWorkflow task.Source: docs.cloud.google.com
What should I do about it?
Update Application Integration to the September 11, 2026 version or later. The source lists no workaround.Source: docs.cloud.google.com
Is it being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data