01 Record
CVE-2026-0859
TYPO3 CMS Allows Insecure Deserialization via Mailer File Spool
MediumPUBLISHEDCNA: TYPO3
CNA base score5.2 CVSS v4.0CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H
02 Description
TYPO3 CMS Allows Insecure Deserialization via Mailer File Spool
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.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.18% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 7.8% of scored records. A rank, not a probability.
- NVD base score
- 5.2 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H/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
- Analyzed. 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
- 2026-01-13 11:54Z9 MO AGO
- Last updated
- 2026-01-13 14:12Z9 MO AGO
- Reserved
- 2026-01-12
- Assigning CNA
- TYPO3
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.2)
- CNA CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H
- Weaknesses
- CWE-502Deserialization of Untrusted DataBase
- Data version
- 5.2
- Document digest
- 132b8ae9de158dcc68c20d95f01287bd6acfa0bf852cf2cff8676567a3c29061
05 Affected products
VendorProductVersionsPlatforms
TYPO3TYPO3 CMS10.0.0 to < 10.4.55, 11.0.0 to < 11.5.49, 12.0.0 to < 12.4.41, 13.0.0 to < 13.4.23, 14.0.0 to < 14.0.2—
06 References
- typo3.orghttps://typo3.org/security/advisory/typo3-core-sa-2026-004
- github.comGit commit of main branchhttps://github.com/TYPO3/typo3/commit/3225d705080a1bde57a66689621c947da5a4782f
- github.comGit commit of 13.4 branchhttps://github.com/TYPO3/typo3/commit/e0f0ceee480c203fbb60b87454f5f193e541d27f
- github.comGit commit of 12.4 branchhttps://github.com/TYPO3/typo3/commit/722bf71c118b0a8e4f2c2494854437d846799a13