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CVE-2026-48784

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, UrlGenerator::doGenerate() used strtr() dot-segment encoding that skipped every other chained ../ or ./ segment, allowing attacker-controlled route parameters to generate URLs that collapse to a different path under RFC 3986 normalization. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b9d084f87a60615327e936ca56325c361041c13ab55fd6e76341ae327b1d6e34
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"symfony","vendor":"symfony","versions":[{"status":"affected","version":"< 5.4.53"},{"status":"affected","version":">= 6.0.0-BETA1, < 6.4.41"},{"status":"affected","version":">= 7.0.0-BETA1, < 7.4.13"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.13"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/affected/0

{"product":"routing","vendor":"symfony","versions":[{"status":"affected","version":"< 5.4.53"},{"status":"affected","version":">= 6.0.0-BETA1, < 6.4.41"},{"status":"affected","version":">= 7.0.0-BETA1, < 7.4.13"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.13"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/affected/1
cwe · 2 assertions

{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-172","description":"CWE-172: Encoding Error","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

2 source assertions
{"product":"symfony","vendor":"symfony","versions":[{"status":"affected","version":"< 5.4.53"},{"status":"affected","version":">= 6.0.0-BETA1, < 6.4.41"},{"status":"affected","version":">= 7.0.0-BETA1, < 7.4.13"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.13"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/affected/0
{"product":"routing","vendor":"symfony","versions":[{"status":"affected","version":"< 5.4.53"},{"status":"affected","version":">= 6.0.0-BETA1, < 6.4.41"},{"status":"affected","version":">= 7.0.0-BETA1, < 7.4.13"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.13"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-172","description":"CWE-172: Encoding Error","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"name":"https://github.com/symfony/symfony/commit/4b63c3a3f7af04ecd79c89a594b0b02a01990b1d","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/symfony/commit/4b63c3a3f7af04ecd79c89a594b0b02a01990b1d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/references/1
{"name":"https://github.com/symfony/symfony/releases/tag/v5.4.53","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/symfony/releases/tag/v5.4.53"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/references/2
{"name":"https://github.com/symfony/symfony/releases/tag/v6.4.41","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/symfony/releases/tag/v6.4.41"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/references/3
{"name":"https://github.com/symfony/symfony/releases/tag/v7.4.13","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/symfony/releases/tag/v7.4.13"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/references/4
{"name":"https://github.com/symfony/symfony/security/advisories/GHSA-h5x3-xfc9-m39h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/symfony/symfony/security/advisories/GHSA-h5x3-xfc9-m39h"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:162a7c4e57f2fb9c93c7164c906f733d24e3ad7397a50bd40b8d7de55f9db399 · sha256:ebf6506a77399cdf… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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