01 Record
CVE-2026-7482
Ollama heap out-of-bounds read in GGUF tensor parsing leaks server process memory to unauthenticated remote attackers
HighPUBLISHEDCNA: Echo
CNA base score8.8 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/AU:Y/R:A/V:D/RE:L/U:Red
02 Description
Ollama heap out-of-bounds read in GGUF tensor parsing leaks server process memory to unauthenticated remote attackers
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 2.24% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 82.7% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:D/RE:L/U:Red
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Critical. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-05-04 12:38Z5 MO AGO
- Last updated
- 2026-05-04 13:48Z5 MO AGO
- Reserved
- 2026-04-30
- Assigning CNA
- Echo
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.8)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/AU:Y/R:A/V:D/RE:L/U:Red
- Weaknesses
- CWE-125Out-of-bounds ReadBase
- Data version
- 5.2
- Document digest
- 6e20e8ba5c971ca6efd73d806df2535fb9cdd794cbfe9e0dd46db5245f00f9d4
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comollama/ollama PR #14406 — ggml: ensure tensor size is valid (fix)https://github.com/ollama/ollama/pull/14406
- github.comFix commit 88d57d0https://github.com/ollama/ollama/commit/88d57d0483cca907e0b23a968c83627a20b21047
- github.comollama v0.17.1 release noteshttps://github.com/ollama/ollama/releases/tag/v0.17.1
07 Remediation
Upgrade to ollama 0.17.1 or later. The fix in PR #14406 validates that declared tensor offset+size do not exceed the GGUF file size before reading, and adds a length check in the quantizer prior to the unsafe read.