Advisory details:
github_osv / GHSA-6439-2f28-8p8q
| Advisory ID | github_osv/GHSA-6439-2f28-8p8q |
| Aliases |
CVE-2026-45075
|
| Summary | Symfony's HEAD Request Bypasses methods: ['GET'] Filter in #[IsGranted] / #[IsSignatureValid] / #[IsCsrfTokenValid] ### Description Symfony's `#[IsGranted('...')]`, `#[IsSignatureValid]`, and `#[IsCsrfTokenValid(...)]` attributes allow you to define a `methods: [...]` argument to only enforce these checks for the listed HTTP methods and skip them otherwise. E.g. an attribute defining `methods: ['GET']` would be ignored for a `HEAD` request. On the other hand, Symfony's router (and HTTP semantics generally) serves `HEAD` requests using the `GET` handler. Therefore, a controller protected by e.g. `#[IsGranted('ROLE_ADMIN', methods: ['GET'])]` can be reached via `HEAD` with the authorization check silently skipped. Even if the `HEAD` request won't get any response content, response headers leak (`Content-Length`, `Location`, custom headers). Also, the controller still executes and any side effects (DB writes, state changes) occur. ### Resolution When adding `GET` in the `methods` option of these attributes, Symfony now also include the `HEAD` method automatically. The patch for this issue is available [here](https://github.com/symfony/symfony/commit/fa8d5c67aa4b22c9656e3fd7d5c3aa59865bf838) for branch 7.4. ### Credits Symfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and Alexandre Daubois for fixing it. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 7.7 |
| Risk | 3.9 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| CWE-863 | Incorrect Authorization |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 8.6 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-6439-2f28-8p8q/GHSA-6439-2f28-8p8q.json |
| generic_textual | HIGH |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-07-16T14:38:10Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/45xxx/CVE-2026-45075.json
Source Advisory: vulnrichment/CVE-2026-45075
[{'Exploitation': 'none'},
{'Automatable': 'yes'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]