CVE-2026-108755
Hatchet through 0.110.5 contains an allocation of resources without limits vulnerability that allows unauthenticated attackers to exhaust memory via the SNS ingestion endpoint.
Does this matter?
Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own.
Description
Hatchet through 0.110.5 contains an allocation of resources without limits vulnerability that allows unauthenticated attackers to exhaust memory via the SNS ingestion endpoint. Attackers can send arbitrarily large or concurrent request bodies to POST /api/v1/sns/{tenant}/{event} with any UUID, which the SnsUpdate handler buffers before signature verification, degrading availability.
- CVSS 4.0
- 6.9 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.32% probability · 24th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Source
- disclosure@vulncheck.com
EPSS moved from 0.3% on 12 October 2026 to 0.3% on 26 October 2026.
References
- https://github.com/hatchet-dev/hatchet
- https://github.com/hatchet-dev/hatchet/blob/56c617e0da399bc9d8a10d2ba74b4950f8a950b8/api/v1/server/handlers/ingestors/sns.go#L15-L32
- https://github.com/hatchet-dev/hatchet/blob/56c617e0da399bc9d8a10d2ba74b4950f8a950b8/api/v1/server/middleware/ratelimit/ratelimit.go#L33-L49
- https://hackmd.io/@haind03/hatchet-public-sns-unbounded-body-before-signature-dos
- https://www.vulncheck.com/advisories/hatchet-through-0.110.5-unauthenticated-memory-exhaustion-via-sns-ingestion-endpoint
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.