CVE-2026-114127

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Source

https://cve.org/CVERecord?id=CVE-2026-114127

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114127.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-114127

Aliases

GHSA-mpr7-6m5w-76rw

Published

2026-10-21T17:30:03Z

Modified

2026-10-22T02:49:06Z

Severity

2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Astro: Arbitrary CSS injection in Astro View Transitions

Details

Astro is a web framework for content-driven websites. From 7.1.0 until 7.3.3, Astro's server-side View Transition CSS generator does not keep string animation properties within their generated declarations. An application that passes attacker-controlled data into properties such as duration, delay, easing, direction, fillMode, or animation names can allow CSS delimiters to terminate the declaration and add attacker-selected rules to the server-rendered page. The generated stylesheet still escapes literal less-than characters, so the injected content cannot terminate the style element or directly inject HTML or JavaScript. The injected CSS can conceal or reposition content, add generated text, and otherwise misrepresent the interface; some applications may also expose data already present in selectable DOM attributes through conditional resource loads. This issue is fixed in 7.3.3.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-79"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114127.json"
}

References

Affected packages

Git / github.com/withastro/astro

Affected ranges

Type

GIT

Repo

https://github.com/withastro/astro

Events

Introduced

fdd673cc193734d7818fe5ace39c86b9500b2754

Fixed

8a3106e56abb46b0171688dd54d2570a308a70f6

Fixed

0b4dc3a211910b589d3805ab4dfedf11b0e712bb

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "7.1.0"
                },
                {
                    "fixed":  "7.3.3"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "0b4dc3a211910b589d3805ab4dfedf11b0e712bb"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "astro@7.3.3",
            "range":  [
                {
                    "fixed":  "8a3106e56abb46b0171688dd54d2570a308a70f6"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

@astrojs/check@0.*

@astrojs/check@0.9.10

@astrojs/cloudflare@14.*

@astrojs/cloudflare@14.1.4

@astrojs/cloudflare@14.1.5

@astrojs/cloudflare@14.1.6

@astrojs/cloudflare@14.1.7

@astrojs/cloudflare@14.2.0

@astrojs/cloudflare@14.2.1

@astrojs/cloudflare@14.2.2

@astrojs/cloudflare@14.2.3

@astrojs/cloudflare@14.2.4

@astrojs/cloudflare@14.2.5

@astrojs/cloudflare@14.2.6

@astrojs/cloudflare@14.3.0

@astrojs/cloudflare@14.3.1

@astrojs/internal-helpers@0.*

@astrojs/internal-helpers@0.10.2

@astrojs/internal-helpers@0.10.3

@astrojs/internal-helpers@0.10.4

@astrojs/internal-helpers@0.11.0

@astrojs/language-server@2.*

@astrojs/language-server@2.16.13

@astrojs/language-server@2.16.14

@astrojs/language-server@2.16.15

@astrojs/language-server@2.16.16

@astrojs/markdoc@2.*

@astrojs/markdoc@2.0.4

@astrojs/markdoc@2.0.5

@astrojs/markdoc@2.0.6

@astrojs/markdoc@2.0.7

@astrojs/markdoc@2.0.8

@astrojs/markdoc@2.0.9

@astrojs/markdown-remark@7.*

@astrojs/markdown-remark@7.2.2

@astrojs/markdown-remark@7.2.3

@astrojs/markdown-remark@7.2.4

@astrojs/markdown-remark@7.3.0

@astrojs/markdown-remark@7.3.1

@astrojs/markdown-satteri@0.*

@astrojs/markdown-satteri@0.3.5

@astrojs/markdown-satteri@0.3.6

@astrojs/markdown-satteri@0.3.7

@astrojs/markdown-satteri@0.3.8

@astrojs/markdown-satteri@0.4.0

@astrojs/markdown-satteri@0.4.1

@astrojs/mdx@7.*

@astrojs/mdx@7.0.4

@astrojs/mdx@7.0.5

@astrojs/mdx@7.0.6

@astrojs/mdx@7.0.7

@astrojs/mdx@7.0.8

@astrojs/mdx@8.*

@astrojs/mdx@8.0.0

@astrojs/mdx@8.0.1

@astrojs/netlify@8.*

@astrojs/netlify@8.1.3

@astrojs/netlify@8.2.0

@astrojs/netlify@8.2.1

@astrojs/netlify@8.2.2

@astrojs/netlify@8.2.3

@astrojs/netlify@8.2.4

@astrojs/netlify@8.2.5

@astrojs/node@11.*

@astrojs/node@11.0.3

@astrojs/node@11.1.0

@astrojs/node@11.1.1

@astrojs/node@11.1.2

@astrojs/node@11.1.3

@astrojs/node@11.1.4

@astrojs/node@11.1.5

@astrojs/preact@6.*

@astrojs/preact@6.0.2

@astrojs/preact@6.0.3

@astrojs/preact@6.0.4

@astrojs/preact@6.0.5

@astrojs/react@6.*

@astrojs/react@6.0.2

@astrojs/react@6.0.3

@astrojs/react@6.0.4

@astrojs/react@6.0.5

@astrojs/sitemap@3.*

@astrojs/sitemap@3.7.4

@astrojs/solid-js@7.*

@astrojs/solid-js@7.0.2

@astrojs/ts-plugin@1.*

@astrojs/ts-plugin@1.10.11

@astrojs/underscore-redirects@1.*

@astrojs/underscore-redirects@1.0.4

@astrojs/upgrade@0.*

@astrojs/upgrade@0.7.4

@astrojs/vercel@11.*

@astrojs/vercel@11.0.10

@astrojs/vercel@11.0.4

@astrojs/vercel@11.0.5

@astrojs/vercel@11.0.6

@astrojs/vercel@11.0.7

@astrojs/vercel@11.0.8

@astrojs/vercel@11.0.9

@astrojs/vue@7.*

@astrojs/vue@7.0.2

astro-vscode@2.*

astro-vscode@2.16.18

astro-vscode@2.16.19

astro-vscode@2.16.20

astro@7.*

astro@7.1.0

astro@7.1.1

astro@7.1.2

astro@7.1.3

astro@7.1.4

astro@7.1.5

astro@7.1.6

astro@7.2.0

astro@7.2.1

astro@7.2.10

astro@7.2.2

astro@7.2.3

astro@7.2.4

astro@7.2.5

astro@7.2.6

astro@7.2.7

astro@7.2.8

astro@7.2.9

astro@7.3.0

astro@7.3.1

astro@7.3.2

create-astro@5.*

create-astro@5.2.3

create-astro@5.2.4

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114127.json"