01 Record
CVE-2026-126365
Astro: XSS via unescaped code for unsupported languages in @astrojs/prism
MediumPUBLISHEDCNA: GitHub_M
CNA base score5.4 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
02 Description
Astro: XSS via unescaped code for unsupported languages in @astrojs/prism
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- Not scored by EPSS
- EPSS percentile
- Not scored by EPSS
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Not recorded
- 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
- 2026-11-12 22:36Z1 HR AGO
- Last updated
- 2026-11-12 22:36Z1 HR AGO
- Reserved
- 2026-11-10
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.4)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79Improper Neutralization of Input During Web Page GenerationBase
- Data version
- 5.2
- Document digest
- 173cd408f0053d94299053ebfbb53eff139e26c0714c72157c60fd10712330be
05 Affected products
06 References
- github.comhttps://github.com/withastro/astro/security/advisories/GHSA-ff38-p3qj-4pmf
- github.comhttps://github.com/withastro/astro/commit/edfbf4ab34ff007ae8f7188af76a023a15c9443d
- github.comhttps://github.com/withastro/astro/releases/tag/@astrojs/markdoc@2.1.2
- github.comhttps://github.com/withastro/astro/releases/tag/@astrojs/prism@4.1.2