CVE-2022-4064
Dalli Meta Protocol request_formatter.rb self.meta_set injection
02 Description
Dalli Meta Protocol request_formatter.rb self.meta_set injection
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 1.39% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 72.2% of scored records. A rank, not a probability.
- NVD base score
- 6.3 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
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
- 2022-11-19 00:00Z3 YR AGO
- Last updated
- 2025-04-15 13:12Z1 YR AGO
- Reserved
- 2022-11-19
- Assigning CNA
- VulDB
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.3)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- Weaknesses
- Data version
- 5.1
- Document digest
- e0314e3934e54b0e5ca7682bbc7eb2883e2fffad9ff491ed43e0c94024f56330
05 Affected products
06 References
- vuldb.comVDB-214026 | Dalli Meta Protocol request_formatter.rb self.meta_set injectionhttps://vuldb.com/?id.214026
- vuldb.comVDB-214026 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/?ctiid.214026
- github.comhttps://github.com/petergoldstein/dalli/issues/932
- github.comhttps://github.com/petergoldstein/dalli/pull/933
- github.comhttps://github.com/petergoldstein/dalli/commit/48d594dae55934476fec61789e7a7c3700e0f50d
- github.comhttps://github.com/petergoldstein/dalli/releases/tag/v3.2.3
- github.comhttps://github.com/advisories/GHSA-3xg8-cc8f-9wv2
07 Fixed in
Ubuntu 16.04 LTS
- ruby-dalli No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- ruby-dalli No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- ruby-dalli No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- ruby-dalli No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- ruby-dalli No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- ruby-dalli No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- ruby-dalli No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- ruby-dalli No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.