Upstream information
Description
`yaml` is a YAML parser and serialiser for JavaScript. Parsing a YAML document with a version of `yaml` on the 1.x branch prior to 1.10.3 or on the 2.x branch prior to 2.8.3 may throw a RangeError due to a stack overflow. The node resolution/composition phase uses recursive function calls without a depth bound. An attacker who can supply YAML for parsing can trigger a `RangeError: Maximum call stack size exceeded` with a small payload (~2-10 KB). The `RangeError` is not a `YAMLParseError`, so applications that only catch YAML-specific errors will encounter an unexpected exception type. Depending on the host application's exception handling, this can fail requests or terminate the Node.js process. Flow sequences allow deep nesting with minimal bytes (2 bytes per level: one `[` and one `]`). On the default Node.js stack, approximately 1,000-5,000 levels of nesting (2-10 KB input) exhaust the call stack. The exact threshold is environment-dependent (Node.js version, stack size, call stack depth at invocation). Note: the library's `Parser` (CST phase) uses a stack-based iterative approach and is not affected. Only the compose/resolve phase uses actual call-stack recursion. All three public parsing APIs are affected: `YAML.parse()`, `YAML.parseDocument()`, and `YAML.parseAllDocuments()`. Versions 1.10.3 and 2.8.3 contain a patch.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 4.3 | 4.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | Low | Low |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | SUSE |
|---|---|
| Base Score | 5.3 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Attack Requirements | None |
| Privileges Required | Low |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | None |
| Vulnerable System Integrity Impact | None |
| Vulnerable System Availability Impact | Low |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | alloy | Affected |
| SUSE Linux Enterprise Desktop 15 SP7 | pgadmin4 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | alloy | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | pgadmin4 | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | alloy | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP7 | pgadmin4 | Affected |
| SUSE Linux Enterprise Module for SAP Applications 15 SP7 | trento-web | Ignore |
| SUSE Linux Enterprise Server 15 SP7 | alloy | Affected |
| SUSE Linux Enterprise Server 15 SP7 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server 16.0 | alloy | Affected |
| SUSE Linux Enterprise Server 16.1 | alloy | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | alloy | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | trento-web | Ignore |
| SUSE Linux Enterprise Server for SAP applications 16.0 | alloy | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | trento-web | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | alloy | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | trento-web | Affected |
| openSUSE Leap 15.6 | pgadmin4 | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | pgadmin4 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | pgadmin4 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | pgadmin4 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | pgadmin4 | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP6 | pgadmin4 | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | pgadmin4 | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server 15 SP4 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | pgadmin4 | Affected |
| SUSE Linux Enterprise Server 15 SP5 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | pgadmin4 | Affected |
| SUSE Linux Enterprise Server 15 SP6 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | pgadmin4 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | trento-web | Ignore |
| SUSE Manager Proxy 4.3 | pgadmin4 | Affected |
| SUSE Manager Proxy LTS 4.3 | pgadmin4 | Affected |
| SUSE Manager Retail Branch Server 4.3 | pgadmin4 | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | pgadmin4 | Affected |
| SUSE Manager Server 4.3 | pgadmin4 | Affected |
| SUSE Manager Server LTS 4.3 | pgadmin4 | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.0 | pgadmin4 | Not affected |
| SUSE Enterprise Storage 6 | pgadmin4 | Not affected |
| SUSE Enterprise Storage 7 | pgadmin4 | Not affected |
| SUSE Enterprise Storage 7.1 | pgadmin4 | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | pgadmin4 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | pgadmin4 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | pgadmin4 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | pgadmin4 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | pgadmin4 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | pgadmin4 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | pgadmin4 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | pgadmin4 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | pgadmin4 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | pgadmin4 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | pgadmin4 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | pgadmin4 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | pgadmin4 | Affected |
| SUSE Linux Enterprise Module for SAP Applications 15 SP3 | trento-web | Ignore |
| SUSE Linux Enterprise Module for SAP Applications 15 SP4 | trento-web | Ignore |
| SUSE Linux Enterprise Module for SAP Applications 15 SP5 | trento-web | Ignore |
| SUSE Linux Enterprise Module for SAP Applications 15 SP6 | trento-web | Ignore |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | pgadmin4 | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | pgadmin4 | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | pgadmin4 | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | pgadmin4 | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | pgadmin4 | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server 15 SP1 | pgadmin4 | Not affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | pgadmin4 | Not affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | pgadmin4 | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | pgadmin4 | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | pgadmin4 | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | pgadmin4 | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | pgadmin4 | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | pgadmin4 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | pgadmin4 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | pgadmin4 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | trento-web | Ignore |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | trento-web | Ignore |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | pgadmin4 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | trento-web | Ignore |
| SUSE Manager Proxy 4.0 | pgadmin4 | Not affected |
| SUSE Manager Proxy 4.1 | pgadmin4 | Not affected |
| SUSE Manager Proxy 4.2 | pgadmin4 | Affected |
| SUSE Manager Retail Branch Server 4.0 | pgadmin4 | Not affected |
| SUSE Manager Retail Branch Server 4.1 | pgadmin4 | Not affected |
| SUSE Manager Retail Branch Server 4.2 | pgadmin4 | Affected |
| SUSE Manager Server 4.0 | pgadmin4 | Not affected |
| SUSE Manager Server 4.1 | pgadmin4 | Not affected |
| SUSE Manager Server 4.2 | pgadmin4 | Affected |
| openSUSE Leap 15.3 | pgadmin4 | Affected |
| openSUSE Leap 15.4 | pgadmin4 | Affected |
| openSUSE Leap 15.5 | pgadmin4 | Affected |
SUSE Timeline for this CVE
CVE page created: Thu Mar 26 22:33:08 2026CVE page last modified: Fri Mar 27 20:57:11 2026