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CVE-2026-54736

Phalcon is a high-performance, full-stack PHP framework. Prior to 5.14.1, Phalcon\Encryption\Crypt::decrypt compares the attacker-supplied HMAC tag against the freshly computed HMAC using PHP/Zephir identity comparison, which lowers to a byte-wise comparison that returns early on the first differing byte. This observable timing discrepancy can allow an attacker to recover a valid tag byte-by-byte and attach it to a chosen IV and ciphertext so that decrypt() accepts tampered encrypted content as
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ed49d364d7880e1cf082919af71dfacead75640fe4a5aac8b472c9e17bcc9e94
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-208","description":"CWE-208: Observable Timing Discrepancy","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"cphalcon","vendor":"phalcon","versions":[{"status":"affected","version":"< 5.14.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.2,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-208","description":"CWE-208: Observable Timing Discrepancy","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"name":"https://github.com/phalcon/cphalcon/commit/ad53ab1b2e7ec59b3af92b0b37b8aaa099011137","tags":["x_refsource_MISC"],"url":"https://github.com/phalcon/cphalcon/commit/ad53ab1b2e7ec59b3af92b0b37b8aaa099011137"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /containers/cna/references/3
{"name":"https://github.com/phalcon/cphalcon/issues/17090","tags":["x_refsource_MISC"],"url":"https://github.com/phalcon/cphalcon/issues/17090"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /containers/cna/references/1
{"name":"https://github.com/phalcon/cphalcon/pull/17091","tags":["x_refsource_MISC"],"url":"https://github.com/phalcon/cphalcon/pull/17091"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /containers/cna/references/2
{"name":"https://github.com/phalcon/cphalcon/releases/tag/v5.14.1","tags":["x_refsource_MISC"],"url":"https://github.com/phalcon/cphalcon/releases/tag/v5.14.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /containers/cna/references/4
{"name":"https://github.com/phalcon/cphalcon/security/advisories/GHSA-8jqh-95g6-7jpj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/phalcon/cphalcon/security/advisories/GHSA-8jqh-95g6-7jpj"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4d4b3db655153c67175c5f95d423241fa85c5f58178f8966148099d2b4e18947 · sha256:440ba08b5b40dbde… · /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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