Security readout for executives and security teams
Plain-English summary
A maliciously crafted gob message can make affected Go programs crash by exhausting the call stack during decoding. The impact is denial of service, not data theft or data modification. Business urgency depends on whether internet-facing or tenant-facing services decode untrusted gob data.
Executive priority
Treat this as a high-priority availability risk for Go services that parse untrusted gob data. Patch during normal urgent maintenance, faster for internet-facing or multi-tenant systems. It is not evidenced as actively exploited in the provided sources.
Technical view
CVE-2022-30635 is uncontrolled recursion in Go's encoding/gob Decoder.Decode before Go 1.17.12 and Go 1.18.4. Deeply nested structures can trigger stack exhaustion and panic. CVSS 7.5 reflects network-reachable, unauthenticated availability impact with no confidentiality or integrity impact.
Likely exposure
Exposure is likely in Go services, APIs, or internal components that decode attacker-controlled gob messages using affected Go standard library versions. Systems that do not use encoding/gob, or only decode trusted local data, have lower practical exposure.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The described attack condition is a crafted deeply nested gob message sent to software that decodes untrusted gob input, causing process panic and service disruption.
Researcher notes
The root issue is CWE-674 uncontrolled recursion during gob decoding. The public record supports denial-of-service through stack exhaustion only. Evidence is strongest for affected Go standard library versions and the patched release boundary; exploit prevalence and product-specific exposure are not established here.
Mitigation direction
- Upgrade Go to 1.17.12, 1.18.4, or a later supported release.
- Rebuild and redeploy affected Go binaries after upgrading the toolchain.
- Prioritize services that decode gob data from network or tenant-controlled sources.
- Avoid accepting untrusted gob input where safer formats or trust boundaries are available.
- Check official Go vulnerability guidance for any environment-specific remediation notes.
Validation and detection
- Inventory Go binaries and build toolchains for versions before 1.17.12 or 1.18.4.
- Search code for encoding/gob Decoder.Decode usage and map input trust boundaries.
- Confirm exposed services do not decode unauthenticated or tenant-controlled gob data.
- Verify rebuilt binaries use patched Go versions in production.
- Review monitoring for unexplained panics or availability drops in gob-decoding services.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-674: Exact CWE lookup
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Open ATT&CK lookupCVE-2022-30635 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://go.dev/cl/417064CVE reference
- https://go.googlesource.com/go/+/6fa37e98ea4382bf881428ee0c150ce591500eb7CVE reference
- https://go.dev/issue/53615CVE reference
- https://groups.google.com/g/golang-announce/c/nqrv9fbR0zECVE reference
- https://pkg.go.dev/vuln/GO-2022-0526CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Uncontrolled Recursion
Uncontrolled Recursion represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.