High severity · published Aug 23, 2026
CVE-2026-78147
ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp deserialize_tensor deserialization
7.3
CVSS
0.6%
EPSS
No
On KEV
Description
A vulnerability was found in ggml-org llama.cpp bec4772f6. The impacted element is the function deserialize_tensor of the file ggml/src/ggml-rpc/ggml-rpc.cpp of the component ggml-RPC Server. Performing a manipulation of the argument op/op_params results in deserialization. The attack may be initiated remotely. This vulnerability is distinct from CVE-2026-34159 (GHSA-j8rj-fmpv-wcxw, PR #20908), which only added a buffer==nullptr rejection in create_node() and does not validate op or op_params. The reported GitHub issue was closed automatically due to inactivity.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LL
llama.cpp · ggml-org
bec4772f6 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78147
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-78147
github.com
https://github.com/ggml-org/llama.cpp/
github.com
https://github.com/ggml-org/llama.cpp/issues/25289
vuldb.com
https://vuldb.com/cve/CVE-2026-78147
vuldb.com
https://vuldb.com/submit/882534
vuldb.com
https://vuldb.com/vuln/394534
vuldb.com
https://vuldb.com/vuln/394534/cti
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