Answer in brief
CVE-2026-116543 records a High severity (CVSS 8.7) vulnerability in Open5GS 1.3.0 through 2.8.0 Heap Out-of-Bounds Write via SBI Multipart Parser. The current sources do not mark it as known exploited. The current feed maps open5gs/open5gs (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps open5gs/open5gs (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| open5gs/open5gsgeneric | >=1.3.0 <=2.8.0 | Not reported |
Published upstream
Oct 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 26, 2026
Open5GS 1.3.0 through 2.8.0 contains a heap out-of-bounds write vulnerability in parse_multipart() that allows unauthenticated attackers to corrupt memory by supplying an empty multipart boundary. Attackers can send a single crafted multipart/related request to the SBI interface of any network function, overflowing the lookbehind buffer and crashing it.
Quoted source text, attributed separately from HOL analysis.