Security readout for executives and security teams
Plain-English summary
A flaw in Go's io/fs Glob could let a specially shaped path crash an affected Go program. The impact is availability, not data theft or code execution. Risk is highest for services that accept externally influenced paths or glob patterns and were built with Go before 1.17.12 or 1.18.4.
Executive priority
Treat as a high-priority availability fix for exposed Go services. It is less urgent than active exploitation or code execution, but a crashable public service can still create operational downtime.
Technical view
Glob in io/fs used uncontrolled recursion before Go 1.17.12 and 1.18.4. A path containing many separators can exhaust the stack and trigger a panic. The CVE maps to CWE-674 and CVSS 7.5, with availability-only impact.
Likely exposure
Exposure is likely limited to Go applications built with vulnerable Go versions that call io/fs Glob on attacker-influenced paths or patterns. Static Go binaries may remain vulnerable until rebuilt with a fixed toolchain.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. The public description supports denial of service through process panic, but not code execution, privilege escalation, or data compromise.
Researcher notes
Focus assessment on reachability of io/fs Glob and whether attackers can influence path content. Evidence supports stack exhaustion from many separators; do not assume broader path traversal, memory corruption, or remote code execution.
Mitigation direction
- Upgrade Go toolchains to 1.17.12, 1.18.4, or later supported versions.
- Rebuild and redeploy affected Go binaries after upgrading the toolchain.
- Prioritize internet-facing services that process user-controlled paths or glob patterns.
- Check Go vendor guidance for any branch-specific remediation details.
Validation and detection
- Inventory deployed Go binaries and their build toolchain versions.
- Identify code paths using io/fs Glob with external input influence.
- Review crash logs for stack exhaustion or panic patterns in path handling.
- Confirm rebuilt services run with fixed Go versions.
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
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 lookupCVE-2022-30630 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/417065CVE reference
- https://go.googlesource.com/go/+/fa2d41d0ca736f3ad6b200b2a4e134364e9acc59CVE reference
- https://go.dev/issue/53415CVE reference
- https://groups.google.com/g/golang-announce/c/nqrv9fbR0zECVE reference
- https://pkg.go.dev/vuln/GO-2022-0527CVE 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.