GHSA-g2xq-2v27-4rh3

Source

https://github.com/advisories/GHSA-g2xq-2v27-4rh3

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-g2xq-2v27-4rh3/GHSA-g2xq-2v27-4rh3.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-g2xq-2v27-4rh3

Aliases

Downstream

CGA (14)

MINI (7)

Published

2026-06-10T15:31:31Z

Modified

2026-09-10T03:50:49Z

Severity

8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

Jenkins arbitrary type deserialization from attacker-controlled config.xml allows remote code execution and user impersonation

Details

In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled config.xml submission in a way that allows them to handle HTTP requests afterwards.

This can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller.

Database specific

{
    "cwe_ids":  [
        "CWE-502"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-08-13T18:20:01Z",
    "nvd_published_at":  "2026-06-10T14:16:36Z",
    "severity":  "HIGH"
}

References

Affected packages

Maven / org.jenkins-ci.main:jenkins-core

Package

Name: org.jenkins-ci.main:jenkins-core; View open source insights on deps.dev
Purl: pkg:maven/org.jenkins-ci.main/jenkins-core

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.555.3

Affected versions

1.*

1.396

1.397

1.398

1.399

1.400

1.401

1.403

1.404

1.405

1.406

1.407

1.408

1.409

1.409.1

1.409.2

1.409.3

1.410

1.411

1.412

1.413

1.414

1.415

1.416

1.417

1.418

1.419

1.420

1.421

1.422

1.423

1.424

1.424.1

1.424.2

1.424.3

1.424.4

1.424.5

1.424.6

1.425

1.426

1.427

1.428

1.429

1.430

1.431

1.432

1.433

1.434

1.435

1.436

1.437

1.438

1.439

1.440

1.441

1.442

1.443

1.444

1.445

1.446

1.447

1.447.1

1.447.2

1.448

1.449

1.450

1.451

1.452

1.453

1.454

1.455

1.456

1.457

1.458

1.459

1.460

1.461

1.462

1.463

1.464

1.465

1.466

1.466.1

1.466.2

1.467

1.468

1.469

1.470

1.471

1.472

1.473

1.474

1.475

1.476

1.477

1.478

1.479

1.480

1.480.1

1.480.2

1.480.3

1.481

1.482

1.483

1.484

1.485

1.486

1.487

1.488

1.489

1.490

1.491

1.492

1.493

1.494

1.495

1.496

1.497

1.498

1.499

1.500

1.501

1.502

1.503

1.504

1.505

1.506

1.507

1.508

1.509

1.509.1

1.509.2

1.509.2.JENKINS-8856-diag

1.509.2.JENKINS-14362-jzlib

1.509.3

1.509.3.JENKINS-14362-jzlib

1.509.4

1.510

1.511

1.512

1.513

1.514

1.515

1.516

1.516.JENKINS-14362-jzlib

1.517

1.518

1.518.JENKINS-14362-jzlib

1.519

1.520

1.521

1.522

1.523

1.524

1.525

1.526

1.527

1.528

1.529

1.530

1.531

1.532

1.532.1

1.532.1.JENKINS-19453

1.532.2

1.532.2.JENKINS-21622-diag

1.532.2.JENKINS-22395-diag

1.532.3

1.532.3.JENKINS-22395

1.532.3.JENKINS-22395-2

1.533

1.534

1.535

1.536

1.537

1.538

1.539

1.540

1.541

1.542

1.543

1.544

1.545

1.546

1.547

1.548

1.549

1.550

1.551

1.552

1.553

1.554

1.554.1

1.554.2

1.554.3

1.554.3.JENKINS-18065-ALLRM-all

1.554.3.JENKINS-18065-JENKINS-23945

1.555

1.556

1.557

1.558

1.559

1.560

1.561

1.562

1.563

1.564

1.565

1.565.1

1.565.1.JENKINS-22395-dropLinks

1.565.2

1.565.3

1.566

1.567

1.568

1.569

1.570

1.571

1.572

1.573

1.574

1.575

1.576

1.577

1.578

1.579

1.580

1.580.1

1.580.2

1.580.3

1.581

1.582

1.583

1.584

1.585

1.586

1.587

1.588

1.589

1.590

1.591

1.592

1.593

1.594

1.595

1.596

1.596.1

1.596.2

1.596.3

1.597

1.598

1.599

1.600

1.601

1.602

1.604

1.605

1.606

1.607

1.608

1.609

1.609.1

1.609.2

1.609.3

1.610

1.611

1.612

1.613

1.614

1.615

1.616

1.617

1.618

1.619

1.620

1.621

1.622

1.623

1.624

1.625

1.625.1

1.625.2

1.625.3

1.626

1.627

1.628

1.629

1.630

1.631

1.632

1.633

1.634

1.635

1.636

1.637

1.638

1.639

1.640

1.641

1.642

1.642.1

1.642.2

1.642.3

1.642.4

1.643

1.644

1.645

1.646

1.647

1.648

1.649

1.650

1.651

1.651.1

1.651.2

1.651.3

1.652

1.653

1.654

1.655

1.656

1.657

1.658

2.*

2.0-alpha-1

2.0-alpha-2

2.0-alpha-3

2.0-alpha-4

2.0-beta-1

2.0-beta-2

2.0-rc-1

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.7.1

2.7.2

2.7.3

2.7.4

2.8

2.9

2.10

2.11

2.12

2.13

2.14

2.15

2.16

2.17

2.18

2.19

2.19.1

2.19.2

2.19.3

2.19.4

2.20

2.21

2.22

2.23

2.24

2.25

2.26

2.27

2.28

2.29

2.30

2.31

2.32

2.32.1

2.32.2

2.32.3

2.33

2.34

2.35

2.36

2.37

2.38

2.39

2.40

2.41

2.42

2.43

2.44

2.45

2.46

2.46.1

2.46.2

2.46.3

2.47

2.48

2.49

2.50

2.51

2.52

2.53

2.54

2.55

2.56

2.57

2.58

2.59

2.60

2.60.1

2.60.2

2.60.3

2.61

2.62

2.63

2.64

2.65

2.66

2.67

2.68

2.69

2.70

2.71

2.72

2.73

2.73.1

2.73.2

2.73.3

2.74

2.75

2.76

2.77

2.78

2.79

2.80

2.81

2.82

2.83

2.84

2.85

2.86

2.87

2.88

2.89

2.89.1

2.89.2

2.89.3

2.89.4

2.90

2.91

2.92

2.93

2.94

2.95

2.96

2.97

2.98

2.99

2.100

2.101

2.102

2.103

2.104

2.105

2.106

2.107

2.107.1

2.107.2

2.107.3

2.108

2.109

2.110

2.111

2.112

2.113

2.114

2.115

2.116

2.117

2.118

2.119

2.120

2.121

2.121.1

2.121.2

2.121.3

2.122

2.123

2.124

2.125

2.126

2.127

2.128

2.129

2.130

2.131

2.132

2.133

2.134

2.135

2.136

2.137

2.138

2.138.1

2.138.2

2.138.3

2.138.4

2.140

2.141

2.142

2.143

2.144

2.145

2.146

2.147

2.148

2.149

2.150

2.150.1

2.150.2

2.150.3

2.151

2.152

2.153

2.154

2.155

2.156

2.157

2.158

2.159

2.160

2.161

2.162

2.163

2.164

2.164.1

2.164.2

2.164.3

2.165

2.166

2.167

2.168

2.169

2.170

2.171

2.172

2.173

2.174

2.175

2.176

2.176.1

2.176.2

2.176.3

2.176.4

2.177

2.178

2.179

2.180

2.181

2.182

2.183

2.184

2.185

2.186

2.187

2.189

2.190

2.190.1

2.190.2

2.190.3

2.191

2.192

2.193

2.194

2.195

2.196

2.197

2.198

2.199

2.200

2.201

2.202

2.203

2.204

2.204.1

2.204.2

2.204.3

2.204.4

2.204.5

2.204.6

2.205

2.206

2.207

2.208

2.209

2.210

2.211

2.212

2.213

2.214

2.215

2.216

2.217

2.218

2.219

2.220

2.221

2.222

2.222.1

2.222.3

2.222.4

2.223

2.224

2.225

2.226

2.227

2.228

2.229

2.230

2.231

2.232

2.233

2.234

2.235

2.235.1

2.235.2

2.235.3

2.235.4

2.235.5

2.236

2.237

2.238

2.239

2.240

2.241

2.242

2.243

2.244

2.245

2.246

2.247

2.248

2.249

2.249.1

2.249.2

2.249.3

2.250

2.251

2.252

2.253

2.254

2.255

2.256

2.257

2.258

2.259

2.260

2.261

2.262

2.263

2.263.1

2.263.2

2.263.3

2.263.4

2.264

2.265

2.266

2.267

2.268

2.269

2.270

2.271

2.272

2.273

2.274

2.275

2.276

2.277

2.277.1

2.277.2

2.277.3

2.277.4

2.278

2.279

2.280

2.281

2.282

2.283

2.284

2.285

2.286

2.287

2.288

2.289

2.289.1

2.289.2

2.289.3

2.290

2.291

2.292

2.293

2.294

2.295

2.296

2.297

2.298

2.299

2.300

2.301

2.302

2.303

2.303.1

2.303.2

2.303.3

2.304

2.305

2.306

2.307

2.308

2.309

2.311

2.312

2.313

2.314

2.315

2.316

2.317

2.318

2.319

2.319.1

2.319.2

2.319.3

2.320

2.321

2.322

2.323

2.324

2.325

2.326

2.327

2.328

2.329

2.330

2.331

2.332

2.332.1

2.332.2

2.332.3

2.332.4

2.333

2.334

2.335

2.336

2.337

2.338

2.339

2.340

2.341

2.342

2.343

2.344

2.345

2.346

2.346.1

2.346.2

2.346.3

2.347

2.348

2.349

2.350

2.354

2.355

2.356

2.357

2.358

2.359

2.360

2.361

2.361.1

2.361.2

2.361.3

2.361.4

2.362

2.363

2.364

2.365

2.366

2.367

2.368

2.369

2.370

2.371

2.372

2.373

2.374

2.375

2.375.1

2.375.2

2.375.3

2.375.4

2.376

2.377

2.378

2.379

2.380

2.381

2.382

2.383

2.384

2.385

2.386

2.387

2.387.1

2.387.2

2.387.3

2.388

2.389

2.390

2.391

2.392

2.393

2.394

2.395

2.396

2.397

2.398

2.399

2.400

2.401

2.401.1

2.401.2

2.401.3

2.402

2.403

2.404

2.405

2.406

2.407

2.409

2.410

2.411

2.412

2.413

2.414

2.414.1

2.414.2

2.414.3

2.415

2.416

2.417

2.418

2.419

2.420

2.421

2.422

2.423

2.424

2.425

2.426

2.426.1

2.426.2

2.426.3

2.427

2.428

2.429

2.430

2.431

2.432

2.433

2.434

2.435

2.436

2.437

2.438

2.439

2.440

2.440.1

2.440.2

2.440.3

2.441

2.442

2.443

2.444

2.445

2.446

2.447

2.448

2.449

2.450

2.451

2.452

2.452.1

2.452.2

2.452.3

2.452.4

2.453

2.454

2.455

2.456

2.457

2.458

2.459

2.460

2.461

2.462

2.462.1

2.462.2

2.462.3

2.463

2.464

2.466

2.467

2.468

2.469

2.470

2.471

2.472

2.473

2.474

2.475

2.476

2.477

2.478

2.479

2.479.1

2.479.2

2.479.3

2.480

2.481

2.482

2.483

2.484

2.485

2.486

2.487

2.488

2.489

2.490

2.491

2.492

2.492.1

2.492.2

2.492.3

2.493

2.494

2.495

2.496

2.497

2.498

2.499

2.500

2.501

2.502

2.503

2.504

2.504.1

2.504.2

2.504.3

2.505

2.506

2.507

2.508

2.509

2.510

2.511

2.512

2.513

2.514

2.515

2.516

2.516.1

2.516.2

2.516.3

2.517

2.518

2.519

2.520

2.521

2.522

2.523

2.524

2.525

2.526

2.527

2.528

2.528.1

2.528.2

2.528.3

2.529

2.530

2.531

2.532

2.533

2.534

2.535

2.536

2.537

2.538

2.539

2.540

2.541

2.541.1

2.541.2

2.541.3

2.542

2.543

2.544

2.545

2.546

2.547

2.548

2.549

2.550

2.551

2.552

2.553

2.554

2.555

2.555.1

2.555.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-g2xq-2v27-4rh3/GHSA-g2xq-2v27-4rh3.json"

Maven / org.jenkins-ci.main:jenkins-core

Package

Name: org.jenkins-ci.main:jenkins-core; View open source insights on deps.dev
Purl: pkg:maven/org.jenkins-ci.main/jenkins-core

Affected ranges

Type: ECOSYSTEM
Events: Introduced

2.556

Fixed

2.568

Affected versions

2.*

2.556

2.557

2.558

2.559

2.560

2.561

2.562

2.563

2.564

2.565

2.566

2.567

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-g2xq-2v27-4rh3/GHSA-g2xq-2v27-4rh3.json"