HOMEVULNERABILITIESCVE-2026-48489
HIGH

CVE-2026-48489

CWE-863Published: July 14, 2026· Updated: Jul 16, 2026

7.5
CVSS v3.1
EPSS:0.49%probability of exploitation in 30 daysPercentile:38.7th

Official Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, DefaultAuthenticationFailureHandler honored the request-supplied _failure_path parameter when failure_forward: true was enabled, allowing an unauthenticated failing login request to dispatch a subrequest to access_control-protected GET routes that skipped firewall listeners. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.

NVD Source

Technical Analysis

CVE-2026-48489 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

sensiolabs1 product(s)
symfony
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/symfony/symfony/commit/c48a4276309e11aedeeb0ce3a89dfbf0b4fe04ff
PATCHhttps://github.com/symfony/symfony/security/advisories/GHSA-6h46-9jf5-q59x

All References (5)

→
https://github.com/symfony/symfony/commit/c48a4276309e11aedeeb0ce3a89dfbf0b4fe04ffPatch
→
https://github.com/symfony/symfony/releases/tag/v5.4.53Product · Release Notes
→
https://github.com/symfony/symfony/releases/tag/v6.4.41Product · Release Notes
→
https://github.com/symfony/symfony/releases/tag/v7.4.13Product · Release Notes
→
https://github.com/symfony/symfony/security/advisories/GHSA-6h46-9jf5-q59xPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2026-48489
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-863
CISA KEVNo
EPSS (30d)0.49%
Affected1 vendor(s)
PublishedJul 14, 2026

Related CVEs (CWE-863)

CVE-2023-4617
10.0
CVE-2026-44330
10.0
CVE-2020-13300
10.0
CVE-2026-48321
10.0
CVE-2021-38503
10.0
CVE-2026-48303
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-48489 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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