Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2024-56159

26
FAUCET Score

CVE-2024-56159 is an information disclosure vulnerability in the Astro web framework, affecting server-output projects in Astro 5 versions v5.0.3 through v5.0.7, and static-output projects in Astro 4 versions 4.16.17 or older, or Astro 5 versions 5.0.8 or older, when sourcemaps are enabled. The vulnerability allows unauthenticated users to read parts of the server source code due to publicly accessible sourcemap files. Rated as Medium severity (CVSS 5.3), it has a low attack complexity and no user interaction required, potentially leading to further vulnerabilities through revealed source code. While there is no immediate evidence of active exploitation, Nuclei templates exist for detection, and the vulnerability has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.16.18CPE matchmatch criteria
cpe:2.3:a:astro:astro:*:*:*:*:*:node.js:*:*
>= 5.0.0, < 5.0.8CPE matchmatch criteria
cpe:2.3:a:astro:astro:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 4.0

7.8HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L/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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
HIGH
SS Integrity
LOW
SS Availability
LOW
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
1.49%
Probability of exploitation in next 30 days
EPSS Percentile
71.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2024-56159 · Jan 14, 2026
This CVE's current EPSS score of 0.0149 is in the 54th percentile among its peer group of 23,703 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

npmpatch availablevia ghsa
Product: astroFixed in: 4.16.18
npmpatch availablevia ghsa
Product: astroFixed in: 5.0.8
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

npmGHSA-49w6-73cw-chjrhigh

Astro's server source code is exposed to the public if sourcemaps are enabled

Dec 19, 2024

References

github.com / getsentry/sentry-javascript/blob/develop/packages/astro/src/integration/index.ts
Product
github.com / withastro/astro/blob/176fe9f113fd912f9b61e848b00bbcfecd6d5c2c/packages/astro/src/core/build/static-build.ts
Product
github.com / withastro/astro/issues/12703
Issue Tracking
github.com / withastro/astro/security/advisories/GHSA-49w6-73cw-chjr
ExploitVendor Advisory